]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/parser.yy
Replace WORD token in parser and lexer with SYMBOL
[lilypond.git] / lily / parser.yy
index 23c024e9b7e590c42327b4ab69f972a0e76309ac..f81dc69e9b56faa2e82b4052f86448b492c1a347 100644 (file)
@@ -119,6 +119,7 @@ FIXME:
 using namespace std;
 
 #include "book.hh"
+#include "context.hh"
 #include "context-def.hh"
 #include "context-mod.hh"
 #include "dimensions.hh"
@@ -228,12 +229,14 @@ static Music *make_music_with_input (SCM name, Input where);
 SCM check_scheme_arg (Lily_parser *parser, Input loc,
                      SCM arg, SCM args, SCM pred, SCM disp = SCM_UNDEFINED);
 SCM make_music_from_simple (Lily_parser *parser, Input loc, SCM pitch);
-SCM loc_on_music (Input loc, SCM arg);
+SCM loc_on_copy (Lily_parser *parser, Input loc, SCM arg);
 SCM make_chord_elements (Input loc, SCM pitch, SCM dur, SCM modification_list);
 SCM make_chord_step (SCM step, Rational alter);
 SCM make_simple_markup (SCM a);
-SCM make_duration (SCM t, int dots = 0);
+SCM make_duration (SCM t, int dots = 0, SCM factor = SCM_UNDEFINED);
 bool is_regular_identifier (SCM id, bool multiple=false);
+SCM make_reverse_key_list (SCM keys);
+SCM try_word_variants (SCM pred, SCM str);
 SCM try_string_variants (SCM pred, SCM str);
 int yylex (YYSTYPE *s, YYLTYPE *loc, Lily_parser *parser);
 
@@ -345,13 +348,14 @@ If we give names, Bison complains.
 %token BOOK_IDENTIFIER
 %token CHORD_MODIFIER
 %token CHORD_REPETITION
-%token CONTEXT_MOD_IDENTIFIER
 %token DRUM_PITCH
-%token PITCH_IDENTIFIER
+ /* Artificial token for durations in argument lists */
+%token DURATION_ARG
 %token DURATION_IDENTIFIER
 %token EVENT_IDENTIFIER
 %token EVENT_FUNCTION
 %token FRACTION
+%token LOOKUP_IDENTIFIER
 %token LYRIC_ELEMENT
 %token MARKUP_FUNCTION
 %token MARKUP_LIST_FUNCTION
@@ -361,6 +365,7 @@ If we give names, Bison complains.
 %token MUSIC_IDENTIFIER
 %token NOTENAME_PITCH
 %token NUMBER_IDENTIFIER
+%token PITCH_IDENTIFIER
 %token REAL
 %token RESTNAME
 %token SCM_ARG
@@ -370,6 +375,7 @@ If we give names, Bison complains.
 %token STRING
 %token SYMBOL_LIST
 %token TONICNAME_PITCH
+%token SYMBOL
 
 %left '-' '+'
 
@@ -383,8 +389,7 @@ prec levels in different prods */
 start_symbol:
        lilypond
        | EMBEDDED_LILY {
-               SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::pitchnames);
        } embedded_lilypond {
                parser->lexer_->pop_state ();
                 *retval = $3;
@@ -406,10 +411,8 @@ lilypond:  /* empty */ { $$ = SCM_UNSPECIFIED; }
 
 
 toplevel_expression:
-       {
-               parser->lexer_->add_scope (get_header (parser));
-       } lilypond_header {
-               parser->lexer_->set_identifier (ly_symbol2scm ("$defaultheader"), $2);
+       header_block {
+               parser->lexer_->set_identifier (ly_symbol2scm ("$defaultheader"), $1);
        }
        | book_block {
                SCM proc = parser->lexer_->lookup_identifier ("toplevel-book-handler");
@@ -472,6 +475,12 @@ toplevel_expression:
                                id = ly_symbol2scm ("$defaultlayout");
 
                        parser->lexer_->set_identifier (id, $1);
+               } else if (ly_is_module ($1))
+               {
+                       SCM module = get_header (parser);
+                       ly_module_copy (module, $1);
+                       parser->lexer_->set_identifier
+                               (ly_symbol2scm ("$defaultheader"), module);
                } else if (!scm_is_eq ($1, SCM_UNSPECIFIED))
                        parser->parser_error (@1, _("bad expression type"));
        }
@@ -490,6 +499,15 @@ toplevel_expression:
        }
        ;
 
+lookup:
+       LOOKUP_IDENTIFIER
+       | LOOKUP_IDENTIFIER '.' symbol_list_rev
+       {
+               $$ = loc_on_copy (parser, @$,
+                                 nested_property ($1, scm_reverse_x ($3, SCM_EOL)));
+       }
+       ;
+
 embedded_scm_bare:
        SCM_TOKEN
        {
@@ -501,6 +519,7 @@ embedded_scm_bare:
 embedded_scm_active:
        SCM_IDENTIFIER
        | scm_function_call
+       | lookup
        ;
 
 embedded_scm_bare_arg:
@@ -513,11 +532,13 @@ embedded_scm_bare_arg:
        | partial_markup
        | full_markup_list
        | context_modification
+       | header_block
        | score_block
        | context_def_spec_block
        | book_block
        | bookpart_block
        | output_def
+       | lookup
        ;
 
 /* The generic version may end in music, or not */
@@ -525,6 +546,7 @@ embedded_scm_bare_arg:
 embedded_scm:
        embedded_scm_bare
        | scm_function_call
+       | lookup
        ;
 
 /* embedded_scm_arg is _not_ casting pitches to music by default, this
@@ -619,8 +641,15 @@ lilypond_header_body:
        | lilypond_header_body assignment  {
 
        }
-       | lilypond_header_body embedded_scm  {
-
+       | lilypond_header_body SCM_TOKEN {
+               // Evaluate and ignore #xxx, as opposed to \xxx
+               parser->lexer_->eval_scm_token ($2, @2);
+       }
+       | lilypond_header_body embedded_scm_active {
+               if (ly_is_module ($2))
+                       ly_module_copy (scm_current_module (), $2);
+               else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
+                       parser->parser_error (@2, _("bad expression type"));
        }
        ;
 
@@ -630,11 +659,20 @@ lilypond_header:
        }
        ;
 
+header_block:
+       {
+               parser->lexer_->add_scope (get_header (parser));
+       } lilypond_header {
+               $$ = $2;
+       }
+       ;
+
 /*
        DECLARATIONS
 */
 assignment_id:
-       STRING          { $$ = $1; }
+       STRING
+       | SYMBOL
        ;
 
 assignment:
@@ -642,12 +680,12 @@ assignment:
                parser->lexer_->set_identifier ($1, $3);
                 $$ = SCM_UNSPECIFIED;
        }
-       | assignment_id property_path '=' identifier_init {
-               SCM path = scm_cons (scm_string_to_symbol ($1), $2);
-               parser->lexer_->set_identifier (path, $4);
+       | assignment_id '.' property_path '=' identifier_init {
+               SCM path = scm_cons (scm_string_to_symbol ($1), $3);
+               parser->lexer_->set_identifier (path, $5);
                 $$ = SCM_UNSPECIFIED;
        }
-       | assignment_id '.' property_path '=' identifier_init {
+       | assignment_id ',' property_path '=' identifier_init {
                SCM path = scm_cons (scm_string_to_symbol ($1), $3);
                parser->lexer_->set_identifier (path, $5);
                 $$ = SCM_UNSPECIFIED;
@@ -658,6 +696,14 @@ assignment:
 identifier_init:
        identifier_init_nonumber
        | number_expression
+       | symbol_list_part_bare '.' property_path
+       {
+               $$ = scm_reverse_x ($1, $3);
+       }
+       | symbol_list_part_bare ',' property_path
+       {
+               $$ = scm_reverse_x ($1, $3);
+       }
        | post_event_nofinger post_events
        {
                $$ = scm_reverse_x ($2, SCM_EOL);
@@ -683,7 +729,8 @@ identifier_init:
        ;
 
 identifier_init_nonumber:
-       score_block
+       header_block
+       | score_block
        | book_block
        | bookpart_block
        | output_def
@@ -692,7 +739,7 @@ identifier_init_nonumber:
        | pitch_or_music
        | FRACTION
        | string
-        | embedded_scm
+       | embedded_scm
        | partial_markup
        | full_markup_list
         | context_modification
@@ -719,11 +766,23 @@ partial_function:
        }
        | OVERRIDE grob_prop_path '='
        {
-               $$ = scm_acons (Lily::property_override, scm_list_1 ($2), SCM_EOL);
+               if (SCM_UNBNDP ($2))
+                       $$ = scm_list_1 (SCM_BOOL_F);
+               else
+                       $$ = scm_cons
+                               (scm_list_3 (Syntax::property_override_function,
+                                            scm_cdr ($2), scm_car ($2)),
+                                SCM_EOL);
        }
        | SET context_prop_spec '='
        {
-               $$ = scm_acons (Lily::property_set, scm_list_1 ($2), SCM_EOL);
+               if (SCM_UNBNDP ($2))
+                       $$ = scm_list_1 (SCM_BOOL_F);
+               else
+                       $$ = scm_cons
+                               (scm_list_3 (Syntax::property_set_function,
+                                            scm_cadr ($2), scm_car ($2)),
+                                SCM_EOL);
        }
        | MUSIC_FUNCTION EXPECT_SCM function_arglist_optional partial_function
        {
@@ -739,11 +798,23 @@ partial_function:
        }
        | OVERRIDE grob_prop_path '=' partial_function
        {
-               $$ = scm_acons (Lily::property_override, scm_list_1 ($2), $4);
+               if (SCM_UNBNDP ($2))
+                       $$ = scm_list_1 (SCM_BOOL_F);
+               else
+                       $$ = scm_cons
+                               (scm_list_3 (Syntax::property_override_function,
+                                            scm_cdr ($2), scm_car ($2)),
+                                $4);
        }
        | SET context_prop_spec '=' partial_function
        {
-               $$ = scm_acons (Lily::property_set, scm_list_1 ($2), $4);
+               if (SCM_UNBNDP ($2))
+                       $$ = scm_list_1 (SCM_BOOL_F);
+               else
+                       $$ = scm_cons
+                               (scm_list_3 (Syntax::property_set_function,
+                                            scm_cadr ($2), scm_car ($2)),
+                                $4);
        }
        | MUSIC_FUNCTION EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup partial_function
        {
@@ -776,8 +847,7 @@ context_mod_arg:
        embedded_scm
        |
        {
-               SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::pitchnames);
        }
        composite_music
        {
@@ -909,16 +979,15 @@ book_body:
                        SCM proc = parser->lexer_->lookup_identifier ("book-score-handler");
                        scm_call_2 (proc, $1, $2);
                } else if (Output_def *od = unsmob<Output_def> ($2)) {
-                       SCM id = SCM_EOL;
-
-                       if (to_boolean (od->c_variable ("is-paper")))
-                               id = ly_symbol2scm ("$defaultpaper");
-                       else if (to_boolean (od->c_variable ("is-midi")))
-                               id = ly_symbol2scm ("$defaultmidi");
-                       else if (to_boolean (od->c_variable ("is-layout")))
-                               id = ly_symbol2scm ("$defaultlayout");
-
-                       parser->lexer_->set_identifier (id, $2);
+                       if (to_boolean (od->lookup_variable (ly_symbol2scm ("is-paper")))) {
+                               unsmob<Book> ($1)->paper_ = od;
+                               set_paper (parser, od);
+                       } else {
+                               parser->parser_error (@2, _ ("need \\paper for paper block"));
+                       }
+               } else if (ly_is_module ($2))
+               {
+                       ly_module_copy (unsmob<Book> ($1)->header_, $2);
                } else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
                        parser->parser_error (@2, _("bad expression type"));
        }
@@ -990,16 +1059,16 @@ bookpart_body:
                        SCM proc = parser->lexer_->lookup_identifier ("bookpart-score-handler");
                        scm_call_2 (proc, $1, $2);
                } else if (Output_def *od = unsmob<Output_def> ($2)) {
-                       SCM id = SCM_EOL;
-
-                       if (to_boolean (od->c_variable ("is-paper")))
-                               id = ly_symbol2scm ("$defaultpaper");
-                       else if (to_boolean (od->c_variable ("is-midi")))
-                               id = ly_symbol2scm ("$defaultmidi");
-                       else if (to_boolean (od->c_variable ("is-layout")))
-                               id = ly_symbol2scm ("$defaultlayout");
-
-                       parser->lexer_->set_identifier (id, $2);
+                       if (to_boolean (od->lookup_variable (ly_symbol2scm ("is-paper")))) {
+                               unsmob<Book> ($1)->paper_ = od;
+                       } else {
+                               parser->parser_error (@2, _ ("need \\paper for paper block"));
+                       }
+               } else if (ly_is_module ($2)) {
+                       Book *book = unsmob<Book> ($1);
+                       if (!ly_is_module (book->header_))
+                               book->header_ = ly_make_module (false);
+                       ly_module_copy (book->header_, $2);
                } else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
                        parser->parser_error (@2, _("bad expression type"));
        }
@@ -1098,6 +1167,22 @@ score_items:
                                scm_set_cdr_x ($$, scm_cons ($2, scm_cdr ($$)));
                        else
                                $$ = scm_cons ($2, $$);
+               } else if (ly_is_module ($2)) {
+                       SCM module = SCM_UNSPECIFIED;
+                       if (score) {
+                               module = score->get_header ();
+                               if (!ly_is_module (module))
+                               {
+                                       module = ly_make_module (false);
+                                       score->set_header (module);
+                               }
+                       } else if (scm_is_pair ($$) && ly_is_module (scm_car ($$)))
+                               module = scm_car ($$);
+                       else {
+                               module = ly_make_module (false);
+                               $$ = scm_cons (module, $$);
+                       }
+                       ly_module_copy (module, $2);
                } else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
                        parser->parser_error (@2, _("Spurious expression in \\score"));
        }
@@ -1234,8 +1319,7 @@ output_def_body:
        {
                if (scm_is_pair ($1))
                        $1 = scm_car ($1);
-               SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::pitchnames);
        } music_or_context_def
        {
                parser->lexer_->pop_state ();
@@ -1258,10 +1342,10 @@ tempo_event:
        TEMPO steno_duration '=' tempo_range    {
                $$ = MAKE_SYNTAX (tempo, @$, SCM_EOL, $2, $4);
        }
-       | TEMPO scalar steno_duration '=' tempo_range   {
+       | TEMPO text steno_duration '=' tempo_range     {
                $$ = MAKE_SYNTAX (tempo, @$, $2, $3, $5);
        }
-       | TEMPO scalar {
+       | TEMPO text {
                $$ = MAKE_SYNTAX (tempo, @$, $2);
        } %prec ':'
        ;
@@ -1407,21 +1491,12 @@ simple_music:
 context_modification:
         WITH
        {
-               SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::pitchnames);
        } '{' context_mod_list '}'
         {
                 parser->lexer_->pop_state ();
                 $$ = $4;
         }
-        | WITH CONTEXT_MOD_IDENTIFIER
-        {
-                $$ = $2;
-        }
-        | CONTEXT_MOD_IDENTIFIER
-        {
-                $$ = $1;
-        }
        | WITH context_modification_arg
        {
                if (unsmob<Music> ($2)) {
@@ -1431,7 +1506,10 @@ context_modification:
                if (unsmob<Context_mod> ($2))
                        $$ = $2;
                else {
-                       parser->parser_error (@2, _ ("not a context mod"));
+                       // let's permit \with #*unspecified* to go for
+                       // an empty context mod
+                       if (!scm_is_eq ($2, SCM_UNSPECIFIED))
+                               parser->parser_error (@2, _ ("not a context mod"));
                        $$ = Context_mod ().smobbed_copy ();
                }
        }
@@ -1442,16 +1520,40 @@ context_modification_arg:
        | MUSIC_IDENTIFIER
        ;
 
-optional_context_mod:
-        /**/ {
-            $$ = SCM_EOL;
-        }
-        | context_modification
+/* A list of single mods collected from a (possibly empty) sequence of
+ * context modifications, usually written as \with ... \with ...
+ */
+
+optional_context_mods:
+       context_modification_mods_list
         {
-              $$ = $1;
+               if (scm_is_pair ($1))
+                       $$ = scm_append_x (scm_reverse_x ($1, SCM_EOL));
         }
         ;
 
+/* The worker for optional_context_mods conses a (reversed) list where
+ * each element contains the list of single context mods from one
+ * context modification block.  Context_mod::get_mods creates fresh
+ * copies, so it's okay to use append! on them.
+ */
+
+context_modification_mods_list:
+       /**/ {
+               $$ = SCM_EOL;
+       }
+       | context_modification_mods_list context_modification
+       {
+               if (Context_mod *m = unsmob<Context_mod> ($2))
+                       $$ = scm_cons (m->get_mods (), $1);
+       }
+       ;
+
+/* A Context_mod is a container for a list of context mods like
+ * \consists ...  \override ... .  context_mod_list produces a
+ * Context_mod from the inside of a \with { ... } statement.
+ */
+
 context_mod_list:
         /**/ {
             $$ = Context_mod ().smobbed_copy ();
@@ -1460,50 +1562,34 @@ context_mod_list:
                if (!SCM_UNBNDP ($2))
                        unsmob<Context_mod> ($1)->add_context_mod ($2);
         }
-        | context_mod_list CONTEXT_MOD_IDENTIFIER {
-                 Context_mod *md = unsmob<Context_mod> ($2);
-                 if (md)
-                     unsmob<Context_mod> ($1)->add_context_mods (md->get_mods ());
-        }
        | context_mod_list context_mod_arg {
-               if (scm_is_eq ($2, SCM_UNSPECIFIED))
-                       ;
-               else if (unsmob<Music> ($2)) {
+               if (unsmob<Music> ($2)) {
                        SCM proc = parser->lexer_->lookup_identifier ("context-mod-music-handler");
                        $2 = scm_call_1 (proc, $2);
                }
                if (unsmob<Context_mod> ($2))
                        unsmob<Context_mod> ($$)->add_context_mods
                                (unsmob<Context_mod> ($2)->get_mods ());
-               else {
+               else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
                        parser->parser_error (@2, _ ("not a context mod"));
-               }
         }
         ;
 
 context_prefix:
-       CONTEXT symbol optional_id optional_context_mod {
-                Context_mod *ctxmod = unsmob<Context_mod> ($4);
-                SCM mods = SCM_EOL;
-                if (ctxmod)
-                        mods = ctxmod->get_mods ();
-               $$ = START_MAKE_SYNTAX (context_specification, $2, $3, mods, SCM_BOOL_F);
+       CONTEXT symbol optional_id optional_context_mods {
+               $$ = START_MAKE_SYNTAX (context_specification, $2, $3, $4, SCM_BOOL_F);
        }
-       | NEWCONTEXT symbol optional_id optional_context_mod {
-                Context_mod *ctxmod = unsmob<Context_mod> ($4);
-                SCM mods = SCM_EOL;
-                if (ctxmod)
-                        mods = ctxmod->get_mods ();
-               $$ = START_MAKE_SYNTAX (context_specification, $2, $3, mods, SCM_BOOL_T);
+       | NEWCONTEXT symbol optional_id optional_context_mods {
+               $$ = START_MAKE_SYNTAX (context_specification, $2, $3, $4, SCM_BOOL_T);
        }
        ;
 
 new_lyrics:
-       ADDLYRICS lyric_mode_music {
-               $$ = scm_list_1 ($2);
+       ADDLYRICS optional_context_mods lyric_mode_music {
+               $$ = scm_acons ($3, $2, SCM_EOL);
        }
-       | new_lyrics ADDLYRICS lyric_mode_music {
-               $$ = scm_cons ($3, $1);
+       | new_lyrics ADDLYRICS optional_context_mods lyric_mode_music {
+               $$ = scm_acons ($4, $3, $1);
        }
        ;
 
@@ -1532,7 +1618,7 @@ basic_music:
        }
        | LYRICSTO symbol '=' simple_string lyric_mode_music
        {
-               $$ = MAKE_SYNTAX (lyric_combine, @$, $3, $2, $4);
+               $$ = MAKE_SYNTAX (lyric_combine, @$, $4, $2, $5);
        }
        ;
 
@@ -1639,6 +1725,10 @@ symbol_list_arg:
        {
                $$ = scm_append (scm_list_2 ($1, scm_reverse_x ($3, SCM_EOL)));
        }
+       | SYMBOL_LIST ',' symbol_list_rev
+       {
+               $$ = scm_append (scm_list_2 ($1, scm_reverse_x ($3, SCM_EOL)));
+       }
        ;
 
 symbol_list_rev:
@@ -1647,29 +1737,52 @@ symbol_list_rev:
        {
                $$ = scm_append_x (scm_list_2 ($3, $1));
        }
+       | symbol_list_rev ',' symbol_list_part
+       {
+               $$ = scm_append_x (scm_list_2 ($3, $1));
+       }
        ;
 
-// symbol_list_part delivers elements in reverse copy.
+// symbol_list_part delivers elements in reverse copy, no lookahead
 
 symbol_list_part:
-       symbol_list_element
+       symbol_list_part_bare
+       | embedded_scm_bare
        {
-               $$ = try_string_variants (Lily::symbol_list_p, $1);
+               $$ = make_reverse_key_list ($1);
                if (SCM_UNBNDP ($$)) {
-                       parser->parser_error (@1, _("not a symbol"));
+                       parser->parser_error (@1, _("not a key"));
                        $$ = SCM_EOL;
-               } else
-                       $$ = scm_reverse ($$);
+               }
        }
        ;
 
 
 symbol_list_element:
        STRING
-       | embedded_scm_bare
+       {
+               $$ = scm_string_to_symbol ($1);
+       }
+       | UNSIGNED
        ;
 
 
+symbol_list_part_bare:
+       SYMBOL
+       {
+               $$ = try_word_variants (Lily::key_list_p, $1);
+               if (SCM_UNBNDP ($$)) {
+                       parser->parser_error (@1, _("not a key"));
+                       $$ = SCM_EOL;
+               } else
+                       $$ = scm_reverse ($$);
+       }
+       | symbol_list_element
+       {
+               $$ = scm_list_1 ($1);
+       }
+       ;
+
 function_arglist_nonbackup:
        function_arglist_common
        | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup post_event_nofinger
@@ -1724,7 +1837,11 @@ function_arglist_nonbackup:
                                               (parser, @3, $3),
                                               $1, $2);
        }
-       | function_arglist_nonbackup_reparse REPARSE duration_length
+       | function_arglist_nonbackup_reparse REPARSE multiplied_duration
+       {
+               $$ = check_scheme_arg (parser, @3, $3, $1, $2);
+       }
+       | function_arglist_nonbackup_reparse REPARSE reparsed_rhythm
        {
                $$ = check_scheme_arg (parser, @3, $3, $1, $2);
        }
@@ -1746,6 +1863,20 @@ function_arglist_nonbackup:
        }
        ;
 
+
+reparsed_rhythm:
+       DURATION_ARG dots multipliers post_events
+       {
+               $$ = make_music_from_simple (parser, @$,
+                                            make_duration ($1, scm_to_int ($2), $3));
+               Music *m = unsmob<Music> ($$);
+               assert (m);
+               if (scm_is_pair ($4))
+                       m->set_property ("articulations",
+                                        scm_reverse_x ($4, SCM_EOL));
+       } %prec ':'
+       ;
+
 function_arglist_nonbackup_reparse:
        EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup SCM_IDENTIFIER
        {
@@ -1803,6 +1934,23 @@ function_arglist_nonbackup_reparse:
                else
                        MYREPARSE (@4, $2, SCM_ARG, $4);
        }
+       | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup SYMBOL
+       {
+               $$ = $3;
+               SCM res = try_word_variants ($2, $4);
+               if (!SCM_UNBNDP (res))
+                       if (scm_is_pair (res))
+                               MYREPARSE (@4, $2, SYMBOL_LIST, res);
+                       else
+                               MYREPARSE (@4, $2, SCM_ARG, res);
+               else if (scm_is_true
+                        (scm_call_1
+                         ($2, make_music_from_simple
+                          (parser, @4, $4))))
+                       MYREPARSE (@4, $2, STRING, $4);
+               else
+                       MYREPARSE (@4, $2, SCM_ARG, $4);
+       }
        | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup full_markup
        {
                $$ = $3;
@@ -1820,18 +1968,36 @@ function_arglist_nonbackup_reparse:
        {
                $$ = $3;
                if (scm_is_true (scm_call_1 ($2, $4)))
+                       // May be 3 \cm or similar
                        MYREPARSE (@4, $2, REAL, $4);
+               else if (scm_is_true (scm_call_1 ($2, scm_list_1 ($4))))
+                       MYREPARSE (@4, $2, SYMBOL_LIST, scm_list_1 ($4));
                else {
                        SCM d = make_duration ($4);
-                       if (SCM_UNBNDP (d) || scm_is_false (scm_call_1 ($2, d)))
-                               MYREPARSE (@4, $2, REAL, $4); // trigger error
-                       else
-                               MYREPARSE (@4, $2, DURATION_IDENTIFIER, d);
+                       if (!SCM_UNBNDP (d)) {
+                               if (scm_is_true (scm_call_1 ($2, d)))
+                                       MYREPARSE (@4, $2, DURATION_IDENTIFIER, d);
+                               else if (scm_is_true
+                                        (scm_call_1
+                                         ($2, make_music_from_simple (parser, @4, d))))
+                                       MYREPARSE (@4, $2, DURATION_ARG, d);
+                               else
+                                       MYREPARSE (@4, $2, SCM_ARG, $4); // trigger error
+                       } else
+                               MYREPARSE (@4, $2, SCM_ARG, $4); // trigger error
                }
        }
-       | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup DURATION_IDENTIFIER {
+       | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup DURATION_IDENTIFIER
+       {
                $$ = $3;
-               MYREPARSE (@4, $2, DURATION_IDENTIFIER, $4);
+               if (scm_is_true (scm_call_1 ($2, $4)))
+                       MYREPARSE (@4, $2, DURATION_IDENTIFIER, $4);
+               else if (scm_is_true
+                        (scm_call_1
+                         ($2, make_music_from_simple (parser, @4, $4))))
+                       MYREPARSE (@4, $2, DURATION_ARG, $4);
+               else
+                       MYREPARSE (@4, $2, SCM_ARG, $4); // trigger error
        }
        ;
 
@@ -1850,7 +2016,7 @@ function_arglist_backup:
                                $$ = scm_cons ($$, $3);
                        else
                        {
-                               $$ = scm_cons (loc_on_music (@3, $1), $3);
+                               $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                                MYBACKUP (SCM_ARG, $4, @4);
                        }
                }
@@ -1861,7 +2027,7 @@ function_arglist_backup:
                {
                        $$ = scm_cons ($4, $3);
                } else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (EVENT_IDENTIFIER, $4, @4);
                }
        }
@@ -1877,7 +2043,7 @@ function_arglist_backup:
                } else if (scm_is_true (scm_call_1 ($2, $4)))
                        $$ = scm_cons ($4, $3);
                else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (PITCH_IDENTIFIER, $4, @4);
                }
        }
@@ -1893,7 +2059,7 @@ function_arglist_backup:
                } else if (scm_is_true (scm_call_1 ($2, $4)))
                        $$ = scm_cons ($4, $3);
                else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (TONICNAME_PITCH, $4, @4);
                }
        }
@@ -1902,25 +2068,34 @@ function_arglist_backup:
                if (scm_is_true (scm_call_1 ($2, $4)))
                        $$ = scm_cons ($4, $3);
                else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (SCM_IDENTIFIER, $4, @4);
                }
        }
        | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup UNSIGNED
        {
+               $$ = $3;
                if (scm_is_true (scm_call_1 ($2, $4)))
-               {
+                       // May be 3 \cm or similar
                        MYREPARSE (@4, $2, REAL, $4);
-                       $$ = $3;
-               } else {
+               else if (scm_is_true (scm_call_1 ($2, scm_list_1 ($4))))
+                       MYREPARSE (@4, $2, SYMBOL_LIST, scm_list_1 ($4));
+               else {
                        SCM d = make_duration ($4);
-                       if (SCM_UNBNDP (d) || scm_is_false (scm_call_1 ($2, d)))
-                       {
-                               $$ = scm_cons (loc_on_music (@3, $1), $3);
-                               MYBACKUP (UNSIGNED, $4, @4);
+                       if (!SCM_UNBNDP (d)) {
+                               if (scm_is_true (scm_call_1 ($2, d)))
+                                       MYREPARSE (@4, $2, DURATION_IDENTIFIER, d);
+                               else if (scm_is_true
+                                        (scm_call_1
+                                         ($2, make_music_from_simple (parser, @4, d))))
+                                       MYREPARSE (@4, $2, DURATION_ARG, d);
+                               else {
+                                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
+                                       MYBACKUP (UNSIGNED, $4, @4);
+                               }
                        } else {
-                               MYREPARSE (@4, $2, DURATION_IDENTIFIER, d);
-                               $$ = $3;
+                               $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
+                               MYBACKUP (UNSIGNED, $4, @4);
                        }
                }
        }
@@ -1931,7 +2106,7 @@ function_arglist_backup:
                        $$ = $3;
                        MYREPARSE (@4, $2, REAL, $4);
                } else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (REAL, $4, @4);
                }
        }
@@ -1941,7 +2116,7 @@ function_arglist_backup:
                {
                        $$ = scm_cons ($4, $3);
                } else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (NUMBER_IDENTIFIER, $4, @4);
                }
        }
@@ -1958,7 +2133,7 @@ function_arglist_backup:
                        if (scm_is_true (scm_call_1 ($2, $$)))
                                $$ = scm_cons ($$, $3);
                        else {
-                               $$ = scm_cons (loc_on_music (@3, $1), $3);
+                               $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                                MYBACKUP (UNSIGNED, $5, @5);
                                parser->lexer_->push_extra_token (@4, '-');
                        }
@@ -1971,7 +2146,7 @@ function_arglist_backup:
                        MYREPARSE (@5, $2, REAL, n);
                        $$ = $3;
                } else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (REAL, n, @5);
                }
        }
@@ -1981,18 +2156,21 @@ function_arglist_backup:
                if (scm_is_true (scm_call_1 ($2, n))) {
                        $$ = scm_cons (n, $3);
                } else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (NUMBER_IDENTIFIER, n, @5);
                }
        }
        | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup DURATION_IDENTIFIER
        {
+               $$ = $3;
                if (scm_is_true (scm_call_1 ($2, $4)))
-               {
                        MYREPARSE (@4, $2, DURATION_IDENTIFIER, $4);
-                       $$ = $3;
-               } else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+               else if (scm_is_true
+                        (scm_call_1
+                         ($2, make_music_from_simple (parser, @4, $4))))
+                       MYREPARSE (@4, $2, DURATION_ARG, $4);
+               else {
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (DURATION_IDENTIFIER, $4, @4);
                }
        }
@@ -2007,7 +2185,7 @@ function_arglist_backup:
                        else
                                $$ = scm_cons (res, $3);
                else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (SCM_IDENTIFIER, $4, @4);
                }
        }
@@ -2022,7 +2200,22 @@ function_arglist_backup:
                        else
                                $$ = scm_cons (res, $3);
                else {
-                       $$ = scm_cons (loc_on_music (@3, $1), $3);
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
+                       MYBACKUP (STRING, $4, @4);
+               }
+       }
+       | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup SYMBOL
+       {
+               SCM res = try_word_variants ($2, $4);
+               if (!SCM_UNBNDP (res))
+                       if (scm_is_pair (res)) {
+                               $$ = $3;
+                               MYREPARSE (@4, $2, SYMBOL_LIST, res);
+                       }
+                       else
+                               $$ = scm_cons (res, $3);
+               else {
+                       $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
                        MYBACKUP (STRING, $4, @4);
                }
        }
@@ -2041,7 +2234,12 @@ function_arglist_backup:
                $$ = check_scheme_arg (parser, @3,
                                       $3, $1, $2);
        }
-       | function_arglist_backup REPARSE duration_length
+       | function_arglist_backup REPARSE multiplied_duration
+       {
+               $$ = check_scheme_arg (parser, @3,
+                                      $3, $1, $2);
+       }
+       | function_arglist_backup REPARSE reparsed_rhythm
        {
                $$ = check_scheme_arg (parser, @3,
                                       $3, $1, $2);
@@ -2056,7 +2254,7 @@ function_arglist:
        function_arglist_nonbackup
        | EXPECT_OPTIONAL EXPECT_SCM function_arglist_skip_nonbackup DEFAULT
        {
-               $$ = scm_cons (loc_on_music (@4, $1), $3);
+               $$ = scm_cons (loc_on_copy (parser, @4, $1), $3);
        }
        ;
 
@@ -2064,7 +2262,7 @@ function_arglist_skip_nonbackup:
        function_arglist_nonbackup
        | EXPECT_OPTIONAL EXPECT_SCM function_arglist_skip_nonbackup
        {
-               $$ = scm_cons (loc_on_music (@3, $1), $3);
+               $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
        }
        ;
 
@@ -2172,7 +2370,12 @@ function_arglist_common:
                $$ = check_scheme_arg (parser, @3,
                                       $3, $1, $2);
        }
-       | function_arglist_common_reparse REPARSE duration_length
+       | function_arglist_common_reparse REPARSE multiplied_duration
+       {
+               $$ = check_scheme_arg (parser, @3,
+                                      $3, $1, $2);
+       }
+       | function_arglist_common_reparse REPARSE reparsed_rhythm
        {
                $$ = check_scheme_arg (parser, @3,
                                       $3, $1, $2);
@@ -2242,6 +2445,24 @@ function_arglist_common_reparse:
                        // know the predicate to be false.
                        MYREPARSE (@3, $1, SCM_ARG, $3);
        }
+       | EXPECT_SCM function_arglist_optional SYMBOL
+       {
+               $$ = $2;
+               SCM res = try_word_variants ($1, $3);
+               if (!SCM_UNBNDP (res))
+                       if (scm_is_pair (res))
+                               MYREPARSE (@3, $1, SYMBOL_LIST, res);
+                       else
+                               MYREPARSE (@3, $1, SCM_ARG, res);
+               else if (scm_is_true
+                        (scm_call_1
+                         ($1, make_music_from_simple (parser, @3, $3))))
+                       MYREPARSE (@3, $1, LYRIC_ELEMENT, $3);
+               else
+                       // This is going to flag a syntax error, we
+                       // know the predicate to be false.
+                       MYREPARSE (@3, $1, SCM_ARG, $3);
+       }
        | EXPECT_SCM function_arglist_optional full_markup
        {
                $$ = $2;
@@ -2260,19 +2481,36 @@ function_arglist_common_reparse:
        {
                $$ = $2;
                if (scm_is_true (scm_call_1 ($1, $3)))
+                       // May be 3 \cm or similar
                        MYREPARSE (@3, $1, REAL, $3);
+               else if (scm_is_true (scm_call_1 ($1, scm_list_1 ($3))))
+                       MYREPARSE (@3, $1, SYMBOL_LIST, scm_list_1 ($3));
                else {
                        SCM d = make_duration ($3);
-                       if (SCM_UNBNDP (d) || scm_is_false (scm_call_1 ($1, d)))
-                               MYREPARSE (@3, $1, REAL, $3);
-                       else
-                               MYREPARSE (@3, $1, DURATION_IDENTIFIER, d);
+                       if (!SCM_UNBNDP (d)) {
+                               if (scm_is_true (scm_call_1 ($1, d)))
+                                       MYREPARSE (@3, $1, DURATION_IDENTIFIER, d);
+                               else if (scm_is_true
+                                        (scm_call_1
+                                         ($1, make_music_from_simple (parser, @3, d))))
+                                       MYREPARSE (@3, $1, DURATION_ARG, d);
+                               else
+                                       MYREPARSE (@3, $1, SCM_ARG, $3); // trigger error
+                       } else
+                               MYREPARSE (@3, $1, SCM_ARG, $3); // trigger error
                }
        }
        | EXPECT_SCM function_arglist_optional DURATION_IDENTIFIER
        {
                $$ = $2;
-               MYREPARSE (@3, $1, DURATION_IDENTIFIER, $3);
+               if (scm_is_true (scm_call_1 ($1, $3)))
+                       MYREPARSE (@3, $1, DURATION_IDENTIFIER, $3);
+               else if (scm_is_true
+                        (scm_call_1
+                         ($1, make_music_from_simple (parser, @3, $3))))
+                       MYREPARSE (@3, $1, DURATION_ARG, $3);
+               else
+                       MYREPARSE (@3, $1, SCM_ARG, $3); // trigger error
        }
        | EXPECT_SCM function_arglist_optional '-' UNSIGNED
        {
@@ -2302,7 +2540,7 @@ function_arglist_optional:
        function_arglist_backup
        | EXPECT_OPTIONAL EXPECT_SCM function_arglist_skip_backup DEFAULT
        {
-               $$ = scm_cons (loc_on_music (@4, $1), $3);
+               $$ = scm_cons (loc_on_copy (parser, @4, $1), $3);
        }
        | function_arglist_skip_backup BACKUP
        ;
@@ -2311,7 +2549,7 @@ function_arglist_skip_backup:
        function_arglist_backup
        | EXPECT_OPTIONAL EXPECT_SCM function_arglist_skip_backup
        {
-               $$ = scm_cons (loc_on_music (@3, $1), $3);
+               $$ = scm_cons (loc_on_copy (parser, @3, $1), $3);
        }
        ;
 
@@ -2359,12 +2597,8 @@ mode_changed_music:
                }
                parser->lexer_->pop_state ();
        }
-       | mode_changing_head_with_context optional_context_mod grouped_music_list {
-                Context_mod *ctxmod = unsmob<Context_mod> ($2);
-                SCM mods = SCM_EOL;
-                if (ctxmod)
-                        mods = ctxmod->get_mods ();
-               $$ = MAKE_SYNTAX (context_specification, @$, $1, SCM_EOL, mods, SCM_BOOL_T, $3);
+       | mode_changing_head_with_context optional_context_mods grouped_music_list {
+               $$ = MAKE_SYNTAX (context_specification, @$, $1, SCM_EOL, $2, SCM_BOOL_T, $3);
                if (scm_is_eq ($1, ly_symbol2scm ("ChordNames")))
                {
                  $$ = MAKE_SYNTAX (unrelativable_music, @$, $$);
@@ -2375,15 +2609,13 @@ mode_changed_music:
 
 mode_changing_head:
        NOTEMODE {
-               SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::pitchnames);
 
                $$ = ly_symbol2scm ("notes");
        }
        | DRUMMODE
                {
-               SCM nn = parser->lexer_->lookup_identifier ("drumPitchNames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::drum_pitch_names);
 
                $$ = ly_symbol2scm ("drums");
        }
@@ -2393,10 +2625,9 @@ mode_changing_head:
                $$ = ly_symbol2scm ("figures");
        }
        | CHORDMODE {
-               SCM nn = parser->lexer_->lookup_identifier ("chordmodifiers");
-               parser->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
-               nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_chord_state (nn);
+               parser->lexer_->chordmodifier_tab_ =
+                       alist_to_hashq (Lily::chordmodifiers);
+               parser->lexer_->push_chord_state (Lily::pitchnames);
                $$ = ly_symbol2scm ("chords");
 
        }
@@ -2408,8 +2639,7 @@ mode_changing_head:
 
 mode_changing_head_with_context:
        DRUMS {
-               SCM nn = parser->lexer_->lookup_identifier ("drumPitchNames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::drum_pitch_names);
 
                $$ = ly_symbol2scm ("DrumStaff");
        }
@@ -2419,10 +2649,9 @@ mode_changing_head_with_context:
                $$ = ly_symbol2scm ("FiguredBass");
        }
        | CHORDS {
-               SCM nn = parser->lexer_->lookup_identifier ("chordmodifiers");
-               parser->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
-               nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_chord_state (nn);
+               parser->lexer_->chordmodifier_tab_ =
+                       alist_to_hashq (Lily::chordmodifiers);
+               parser->lexer_->push_chord_state (Lily::pitchnames);
                $$ = ly_symbol2scm ("ChordNames");
        }
        | LYRICS
@@ -2442,9 +2671,6 @@ property_path:
        symbol_list_rev  {
                $$ = scm_reverse_x ($1, SCM_EOL);
        }
-       | symbol_list_rev property_path {
-               $$ = scm_reverse_x ($1, $2);
-       }
        ;
 
 property_operation:
@@ -2454,7 +2680,7 @@ property_operation:
        | UNSET symbol {
                $$ = scm_list_2 (ly_symbol2scm ("unset"), $2);
        }
-       | OVERRIDE property_path '=' scalar {
+       | OVERRIDE revert_arg '=' scalar {
                if (scm_ilength ($2) < 2) {
                        parser->parser_error (@2, _("bad grob property path"));
                        $$ = SCM_UNDEFINED;
@@ -2518,6 +2744,10 @@ revert_arg_part:
        {
                $$ = scm_append_x (scm_list_2 ($5, $3));
        }
+       | revert_arg_backup BACKUP SCM_ARG ',' symbol_list_part
+       {
+               $$ = scm_append_x (scm_list_2 ($5, $3));
+       }
        | revert_arg_backup BACKUP SCM_ARG symbol_list_part
        {
                $$ = scm_append_x (scm_list_2 ($4, $3));
@@ -2543,11 +2773,14 @@ context_mod:
        | context_def_mod STRING {
                $$ = scm_list_2 ($1, $2);
        }
+       | context_def_mod SYMBOL {
+               $$ = scm_list_2 ($1, $2);
+       }
        | context_def_mod embedded_scm
        {
                if (!scm_is_string ($2)
-                   && ly_symbol2scm ("consists") != $1
-                   && ly_symbol2scm ("remove") != $1)
+                   && !scm_is_eq ($1, ly_symbol2scm ("consists"))
+                   && !scm_is_eq ($1, ly_symbol2scm ("remove")))
                {
                        $$ = SCM_EOL;
                        parser->parser_error (@1, _ ("only \\consists and \\remove take non-string argument."));
@@ -2655,29 +2888,21 @@ music_property_def:
        OVERRIDE grob_prop_path '=' scalar {
                if (SCM_UNBNDP ($2))
                        $$ = MAKE_SYNTAX (void_music, @$);
-               else {
-                       $$ = MAKE_SYNTAX (property_operation, @$,
+               else
+                       $$ = MAKE_SYNTAX (property_override, @$,
                                          scm_car ($2),
-                                         ly_symbol2scm ("OverrideProperty"),
-                                         scm_cadr ($2),
-                                         $4,
-                                         scm_cddr ($2));
-               }
+                                         scm_cdr ($2),
+                                         $4);
        }
        | REVERT simple_revert_context revert_arg {
-               $$ = MAKE_SYNTAX (property_operation, @$,
-                                 $2,
-                                 ly_symbol2scm ("RevertProperty"),
-                                 scm_car ($3),
-                                 scm_cdr ($3));
+               $$ = MAKE_SYNTAX (property_revert, @$, $2, $3);
        }
        | SET context_prop_spec '=' scalar {
                if (SCM_UNBNDP ($2))
                        $$ = MAKE_SYNTAX (void_music, @$);
                else
-                       $$ = MAKE_SYNTAX (property_operation, @$,
+                       $$ = MAKE_SYNTAX (property_set, @$,
                                          scm_car ($2),
-                                         ly_symbol2scm ("PropertySet"),
                                          scm_cadr ($2),
                                          $4);
        }
@@ -2685,23 +2910,35 @@ music_property_def:
                if (SCM_UNBNDP ($2))
                        $$ = MAKE_SYNTAX (void_music, @$);
                else
-                       $$ = MAKE_SYNTAX (property_operation, @$,
+                       $$ = MAKE_SYNTAX (property_unset, @$,
                                          scm_car ($2),
-                                         ly_symbol2scm ("PropertyUnset"),
                                          scm_cadr ($2));
        }
        ;
 
 string:
-       STRING {
-               $$ = $1;
-       }
+       STRING
+       | SYMBOL
        | full_markup
        ;
 
-simple_string: STRING {
-               $$ = $1;
+text:
+       STRING
+       | SYMBOL
+       | full_markup
+       | embedded_scm_bare
+       {
+               if (Text_interface::is_markup ($1)) {
+                       $$ = $1;
+               } else {
+                       parser->parser_error (@1, (_ ("markup expected")));
+                       $$ = scm_string (SCM_EOL);
+               }
        }
+       ;
+
+simple_string: STRING
+       | SYMBOL
        | embedded_scm_bare
        {
                if (scm_is_string ($1)) {
@@ -2717,6 +2954,12 @@ symbol:
        STRING {
                $$ = scm_string_to_symbol ($1);
        }
+       | SYMBOL
+       {
+               if (!is_regular_identifier ($1, false))
+                       parser->parser_error (@1, (_ ("symbol expected")));
+               $$ = scm_string_to_symbol ($1);
+       }
        | embedded_scm_bare
        {
                // This is a bit of overkill but makes the same
@@ -2749,6 +2992,14 @@ scalar:
                $$ = scm_difference ($2, SCM_UNDEFINED);
        }
        | string
+       | symbol_list_part_bare '.' property_path
+       {
+               $$ = scm_reverse_x ($1, $3);
+       }
+       | symbol_list_part_bare ',' property_path
+       {
+               $$ = scm_reverse_x ($1, $3);
+       }
        ;
 
 event_chord:
@@ -2760,15 +3011,11 @@ event_chord:
                }
        } %prec ':'
        | CHORD_REPETITION optional_notemode_duration post_events {
-               Input i;
-               i.set_location (@1, @3);
-               $$ = MAKE_SYNTAX (repetition_chord, i,
+               $$ = MAKE_SYNTAX (repetition_chord, @$,
                                  $2, scm_reverse_x ($3, SCM_EOL));
        } %prec ':'
        | MULTI_MEASURE_REST optional_notemode_duration post_events {
-               Input i;
-               i.set_location (@1, @3);
-               $$ = MAKE_SYNTAX (multi_measure_rest, i, $2,
+               $$ = MAKE_SYNTAX (multi_measure_rest, @$, $2,
                                  scm_reverse_x ($3, SCM_EOL));
        } %prec ':'
        | tempo_event
@@ -2788,8 +3035,8 @@ note_chord_element:
                  unsmob<Music> (scm_car (s))->set_property ("duration", dur);
                es = ly_append2 (es, postevs);
 
-               m-> set_property ("elements", es);
-               m->set_spot (@$);
+               m->set_property ("elements", es);
+               m->set_spot (parser->lexer_->override_input (@$));
                $$ = m->self_scm ();
        } %prec ':'
        ;
@@ -2896,7 +3143,7 @@ post_events:
                                        $$ = scm_cons (scm_car (p), $$);
                                }
                        } else {
-                               m->set_spot (@2);
+                               m->set_spot (parser->lexer_->override_input (@2));
                                $$ = scm_cons ($2, $$);
                        }
                }
@@ -3094,6 +3341,13 @@ gen_text_def:
                        make_simple_markup ($1));
                $$ = t->unprotect ();
        }
+       | SYMBOL {
+               // Flag a warning? could be unintentional
+               Music *t = MY_MAKE_MUSIC ("TextScriptEvent", @$);
+               t->set_property ("text",
+                       make_simple_markup ($1));
+               $$ = t->unprotect ();
+       }
        | embedded_scm
        {
                Music *m = unsmob<Music> ($1);
@@ -3146,12 +3400,6 @@ script_dir:
        | '-'   { $$ = SCM_UNDEFINED; }
        ;
 
-duration_length:
-       multiplied_duration {
-               $$ = $1;
-       }
-       ;
-
 maybe_notemode_duration:
        {
                $$ = SCM_UNDEFINED;
@@ -3181,26 +3429,13 @@ steno_duration:
                }
        }
        | DURATION_IDENTIFIER dots      {
-               Duration *d = unsmob<Duration> ($1);
-               Duration k (d->duration_log (),
-                            d->dot_count () + scm_to_int ($2));
-               k = k.compressed (d->factor ());
-                scm_remember_upto_here_1 ($1);
-               $$ = k.smobbed_copy ();
+               $$ = make_duration ($1, scm_to_int ($2));
        }
        ;
 
 multiplied_duration:
-       steno_duration {
-               $$ = $1;
-       }
-       | multiplied_duration '*' UNSIGNED {
-               $$ = unsmob<Duration> ($$)->compressed (scm_to_int ($3)).smobbed_copy ();
-       }
-       | multiplied_duration '*' FRACTION {
-               Rational  m (scm_to_int (scm_car ($3)), scm_to_int (scm_cdr ($3)));
-
-               $$ = unsmob<Duration> ($$)->compressed (m).smobbed_copy ();
+       steno_duration multipliers {
+               $$ = make_duration ($1, 0, $2);
        }
        ;
 
@@ -3213,6 +3448,28 @@ dots:
        }
        ;
 
+multipliers:
+       /* empty */
+       {
+               $$ = SCM_UNDEFINED;
+       }
+       | multipliers '*' UNSIGNED
+       {
+               if (!SCM_UNBNDP ($1))
+                       $$ = scm_product ($1, $3);
+               else
+                       $$ = $3;
+       }
+       | multipliers '*' FRACTION
+       {
+               if (!SCM_UNBNDP ($1))
+                       $$ = scm_product ($1, scm_divide (scm_car ($3),
+                                                         scm_cdr ($3)));
+               else
+                       $$ = scm_divide (scm_car ($3), scm_cdr ($3));
+       }
+       ;
+
 tremolo_type:
        ':'     {
                $$ = scm_from_int (parser->default_tremolo_type_);
@@ -3229,9 +3486,10 @@ tremolo_type:
        ;
 
 bass_number:
-       UNSIGNED { $$ = $1; }
-       | STRING { $$ = $1; }
-       | full_markup { $$ = $1; }
+       UNSIGNED
+       | STRING
+       | SYMBOL
+       | full_markup
        | embedded_scm_bare
        {
                // as an integer, it needs to be non-negative, and otherwise
@@ -3417,9 +3675,14 @@ lyric_element:
                        parser->parser_error (@1, _ ("markup outside of text script or \\lyricmode"));
                $$ = $1;
        }
+       | SYMBOL {
+               if (!parser->lexer_->is_lyric_state ())
+                       parser->parser_error (@1, _f ("not a note name: %s", ly_scm2string ($1)));
+               $$ = $1;
+       }
        | STRING {
                if (!parser->lexer_->is_lyric_state ())
-                       parser->parser_error (@1, _ ("unrecognized string, not in text script or \\lyricmode"));
+                       parser->parser_error (@1, _ ("string outside of text script or \\lyricmode"));
                $$ = $1;
        }
        | LYRIC_ELEMENT
@@ -3638,7 +3901,7 @@ full_markup:
        ;
 
 partial_markup:
-       markup_mode markup_head_1_list ETC
+       markup_mode markup_partial_function ETC
        {
                $$ = MAKE_SYNTAX (partial_markup, @2, $2);
                parser->lexer_->pop_state ();
@@ -3660,7 +3923,7 @@ markup_top:
        ;
 
 markup_scm:
-       embedded_scm_bare
+       embedded_scm
        {
                if (Text_interface::is_markup ($1))
                        MYBACKUP (MARKUP_IDENTIFIER, $1, @1);
@@ -3693,8 +3956,7 @@ markup_uncomposed_list:
                $$ = $2;
        }
        | SCORELINES {
-               SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::pitchnames);
        } '{' score_body '}' {
                Score *sc = unsmob<Score> ($4);
                sc->origin ()->set_spot (@$);
@@ -3756,6 +4018,37 @@ markup_command_list_arguments:
        }
        ;
 
+markup_partial_function:
+       MARKUP_FUNCTION markup_arglist_partial
+       {
+               $$ = scm_list_1 (scm_cons ($1, scm_reverse_x ($2, SCM_EOL)));
+       }
+       | markup_head_1_list MARKUP_FUNCTION markup_arglist_partial
+       {
+               $$ = scm_cons (scm_cons ($2, scm_reverse_x ($3, SCM_EOL)),
+                              $1);
+       }
+       ;
+
+markup_arglist_partial:
+       EXPECT_MARKUP markup_arglist_partial
+       {
+               $$ = $2;
+       }
+       | EXPECT_SCM markup_arglist_partial
+       {
+               $$= $2;
+       }
+       | EXPECT_MARKUP markup_command_list_arguments
+       {
+               $$ = $2;
+       }
+       | EXPECT_SCM markup_command_list_arguments
+       {
+               $$ = $2;
+       }
+       ;
+
 markup_head_1_item:
        MARKUP_FUNCTION EXPECT_MARKUP markup_command_list_arguments {
          $$ = scm_cons ($1, scm_reverse_x ($3, SCM_EOL));
@@ -3775,9 +4068,11 @@ simple_markup:
        STRING {
                $$ = make_simple_markup ($1);
        }
+       | SYMBOL {
+               $$ = make_simple_markup ($1);
+       }
        | SCORE {
-               SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
-               parser->lexer_->push_note_state (nn);
+               parser->lexer_->push_note_state (Lily::pitchnames);
        } '{' score_body '}' {
                Score *sc = unsmob<Score> ($4);
                sc->origin ()->set_spot (@$);
@@ -3860,7 +4155,7 @@ Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
                return SCM_IDENTIFIER;
         } else if (unsmob<Context_mod> (sid)) {
                 *destination = unsmob<Context_mod> (sid)->smobbed_copy ();
-                return CONTEXT_MOD_IDENTIFIER;
+                return SCM_IDENTIFIER;
        } else if (Music *mus = unsmob<Music> (sid)) {
                mus = mus->clone ();
                *destination = mus->self_scm ();
@@ -3879,8 +4174,12 @@ Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
        } else if (unsmob<Score> (sid)) {
                *destination = unsmob<Score> (sid)->clone ()->unprotect ();
                return SCM_IDENTIFIER;
+       } else if (scm_is_pair (sid)
+                  && scm_is_pair (scm_car (sid))
+                  && scm_is_true (Lily::key_p (scm_caar (sid)))) {
+               *destination = sid;
+               return LOOKUP_IDENTIFIER;
        }
-
        return -1;
 }
 
@@ -3932,31 +4231,109 @@ SCM check_scheme_arg (Lily_parser *parser, Input loc,
        return args;
 }
 
-SCM loc_on_music (Input loc, SCM arg)
+SCM loc_on_copy (Lily_parser *parser, Input loc, SCM arg)
 {
        if (Music *m = unsmob<Music> (arg))
        {
                m = m->clone ();
-               m->set_spot (loc);
+               m->set_spot (parser->lexer_->override_input (loc));
                return m->unprotect ();
        }
+       if (Book *b = unsmob<Book> (arg))
+       {
+               b = b->clone ();
+               b->origin ()->set_spot (parser->lexer_->override_input (loc));
+               return b->unprotect ();
+       }
+       if (Context_def *cd = unsmob<Context_def> (arg))
+       {
+               cd = cd->clone ();
+               cd->origin ()->set_spot (parser->lexer_->override_input (loc));
+               return cd->unprotect ();
+       }
+       if (Output_def *od = unsmob<Output_def> (arg))
+       {
+               od = od->clone ();
+               od->input_origin_ = parser->lexer_->override_input (loc);
+               return od->unprotect ();
+       }
+       if (Score *s = unsmob<Score> (arg))
+       {
+               s = s->clone ();
+               s->origin ()->set_spot (parser->lexer_->override_input (loc));
+               return s->unprotect ();
+       }
+       if (Context_mod *cm = unsmob<Context_mod> (arg))
+       {
+               return cm->smobbed_copy ();
+       }
        return arg;
 }
 
+SCM
+make_reverse_key_list (SCM keys)
+{
+       if (scm_is_true (Lily::key_p (keys)))
+               return scm_list_1 (keys);
+       if (scm_is_string (keys))
+               return scm_list_1 (scm_string_to_symbol (keys));
+       if (!ly_is_list (keys))
+               return SCM_UNDEFINED;
+       SCM res = SCM_EOL;
+       for (; scm_is_pair (keys); keys = scm_cdr (keys))
+       {
+               SCM elt = scm_car (keys);
+               if (scm_is_true (Lily::key_p (elt)))
+                       res = scm_cons (elt, res);
+               else if (scm_is_string (elt))
+                       res = scm_cons (scm_string_to_symbol (elt), res);
+               else return SCM_UNDEFINED;
+       }
+       return res;
+}
+
 SCM
 try_string_variants (SCM pred, SCM str)
 {
        // a matching predicate is always ok
        if (scm_is_true (scm_call_1 (pred, str)))
                return str;
-       // a symbol may be interpreted as a list of symbols if it helps
-       if (scm_is_symbol (str)) {
+       // a key may be interpreted as a list of keys if it helps
+       if (scm_is_true (Lily::key_p (str))) {
                str = scm_list_1 (str);
                if (scm_is_true (scm_call_1 (pred, str)))
                        return str;
                return SCM_UNDEFINED;
        }
 
+       if (!scm_is_string (str))
+               return SCM_UNDEFINED;
+
+       // Let's attempt the symbol list interpretation first.
+
+       str = scm_string_to_symbol (str);
+
+       SCM lst = scm_list_1 (str);
+
+       if (scm_is_true (scm_call_1 (pred, lst)))
+               return lst;
+
+       // Try the single symbol interpretation
+
+       if (scm_is_true (scm_call_1 (pred, str)))
+               return str;
+
+       return SCM_UNDEFINED;
+}
+
+SCM
+try_word_variants (SCM pred, SCM str)
+{
+       // str is always a string when we come here
+
+       if (scm_is_true (scm_call_1 (pred, str)))
+               return str;
+
        // If this cannot be a string representation of a symbol list,
        // we are through.
 
@@ -3964,6 +4341,10 @@ try_string_variants (SCM pred, SCM str)
                return SCM_UNDEFINED;
 
        str = scm_string_split (str, SCM_MAKE_CHAR ('.'));
+       for (SCM p = str; scm_is_pair (p); p = scm_cdr (p))
+               scm_set_car_x (p, scm_string_split (scm_car (p),
+                                                   SCM_MAKE_CHAR (',')));
+       str = scm_append_x (str);
        for (SCM p = str; scm_is_pair (p); p = scm_cdr (p))
                scm_set_car_x (p, scm_string_to_symbol (scm_car (p)));
 
@@ -4002,7 +4383,8 @@ is_regular_identifier (SCM id, bool multiple)
              || (c >= 'A' && c <= 'Z')
              || c > 0x7f)
                  middle = true;
-         else if (middle && (c == '-' || c == '_' || (multiple && c == '.')))
+         else if (middle && (c == '-' || c == '_' || (multiple &&
+                                                      (c == '.' || c == ','))))
                  middle = false;
          else
                  return false;
@@ -4015,19 +4397,43 @@ make_music_from_simple (Lily_parser *parser, Input loc, SCM simple)
 {
        if (unsmob<Music> (simple))
                return simple;
-       if (parser->lexer_->is_note_state ()) {
-               if (scm_is_symbol (simple)) {
+
+       if (scm_is_symbol (simple))
+       {
+               SCM out = SCM_UNDEFINED;
+               switch (parser->lexer_->scan_word (out, simple))
+               {
+               case DRUM_PITCH:
+               {
                        Music *n = MY_MAKE_MUSIC ("NoteEvent", loc);
                        n->set_property ("duration", parser->default_duration_.smobbed_copy ());
-                       n->set_property ("drum-type", simple);
+                       n->set_property ("drum-type", out);
                        return n->unprotect ();
                }
+               case NOTENAME_PITCH:
+               case TONICNAME_PITCH:
+                       // Take the parsed pitch
+                       simple = out;
+                       break;
+               // Don't scan CHORD_MODIFIER etc.
+               }
+       }
+
+       if (parser->lexer_->is_note_state ()) {
                if (unsmob<Pitch> (simple)) {
                        Music *n = MY_MAKE_MUSIC ("NoteEvent", loc);
                        n->set_property ("duration", parser->default_duration_.smobbed_copy ());
                        n->set_property ("pitch", simple);
                        return n->unprotect ();
                }
+               SCM d = simple;
+               if (scm_is_integer (simple))
+                       d = make_duration (simple);
+               if (unsmob<Duration> (d)) {
+                       Music *n = MY_MAKE_MUSIC ("NoteEvent", loc);
+                       n->set_property ("duration", d);
+                       return n->unprotect ();
+               }
                return simple;
        } else if (parser->lexer_->is_lyric_state ()) {
                if (Text_interface::is_markup (simple))
@@ -4060,26 +4466,40 @@ make_simple_markup (SCM a)
 }
 
 SCM
-make_duration (SCM d, int dots)
+make_duration (SCM d, int dots, SCM factor)
 {
-       int t = scm_to_int (d);
-       if (t > 0 && (t & (t-1)) == 0)
-               return Duration (intlog2 (t), dots).smobbed_copy ();
-       else
-               return SCM_UNDEFINED;
+       Duration k;
+
+       if (Duration *dur = unsmob<Duration> (d)) {
+               if (!dots && SCM_UNBNDP (factor))
+                       return d;
+               k = *dur;
+               if (dots)
+                       k = Duration (k.duration_log (), k.dot_count () + dots)
+                               .compressed (k.factor ());
+       } else {
+               int t = scm_to_int (d);
+               if (t > 0 && (t & (t-1)) == 0)
+                       k = Duration (intlog2 (t), dots);
+               else
+                       return SCM_UNDEFINED;
+       }
+
+       if (!SCM_UNBNDP (factor))
+               k = k.compressed (ly_scm2rational (factor));
+
+       return k.smobbed_copy ();
 }
 
 SCM
 make_chord_step (SCM step_scm, Rational alter)
 {
-        int step = scm_to_int (step_scm);
+       Pitch m (0, scm_to_int (step_scm) - 1, alter);
 
-       if (step == 7)
-               alter += FLAT_ALTERATION;
+       // Notename/octave are normalized
+       if (m.get_notename () == 6)
+               m = m.transposed (Pitch (0, 0, FLAT_ALTERATION));
 
-       while (step < 0)
-               step += 7;
-       Pitch m ((step -1) / 7, (step - 1) % 7, alter);
        return m.smobbed_copy ();
 }