mentioned here. This is an assorted collection of stuff that will be
done, might be done, or is an idea that I want to think about
-Most of the items are marked in the code as well, with full explanation.
-grep for TODO and ugh/ugr/urg
+Most of the items are marked in the code as well
+Grep for TODO and ugh/ugr/urg.
.* BUGS
+. * header for PS enteredby = "bla <bla@bar.com>"
+. * ps/lily.ps
+. * AFM for BlueSky AFM files.
+. * staff size for post/prebreaks
. * .ly files
. * input/star-spangled-banner
. * mutopia/J.S.Bach/wtk1-fugue2.ly
. * input/test/grace
. * fix: text on rests: ridiculous dims
-. * m=\notes\relative c''{
-
-c1 | \break
-R1*5 |
-r2 r4 \bar "||"; \break r |
-c2 c |
-}
-
-\score{
- \type StaffGroup <
- \type Staff = staffi {\m}
- \type Staff = staffii {\m}
- >
+. * \score { \notes { c8 c8 c8 c c c }
+\paper { \translator { \VoiceContext \remove "Auto_beam_engraver";}}
}
. * m=\notes\relative c'''{
\time 2/4;
}
}
}
-. * - Look at input/test/span-bars.ly. The staff lines extend too far
- to the left on the note systems including the GrandStaff.
-. * fix midi output:
-. * default duration? d
- duration must be not entered explicitely on first note.
+. * midi key.
+. *P.P.S. It can be cool in mudela-book to distinguish in pre,postMudelaExample,
+whether MudelaExample is epsed or not: ( if this fragment is floating eps, than 1,
+otherwise 2). say preMudelaExample[eps]{}, and change it in document body sometimes.
. * fix singleStaffBracket
+. * declare performers in \midi
+. * fix MIDI
. * \shape 1st dim skipped?
. * turn slope-damping on/off
-. * c4 \! \> c4
. * tremolo stuff
. * fix height of / collisions with lyrics (chords),
see input/test/vertical-text.ly; input/test/repeat.ly
. * We need feta-din*.mf files for more sizes than 10.
. * latex bla.tex broken (titles / \lilyfooter stuff?)
. * fix dynamics decently, ie. use kerning & ligatures.
-. * fix "I've been drinking too much"
. * support_l_arr_ empty in staff-margin's G_staff_side_item
. * minVerticalAlign for StaffGroups.
-. * declaring \score
-. * is \break broken? input/test/hara-kiri.ly
. * fix OrchestralScore and Hara-kiri (i.e., fix Coriolan)
. * Phrasing: Indicating the textual underlay of a piece, or
otherwise dividing a piece into phrases.
specify the third. Should there be?
.* TODO before 1.2
+. * \selectmusic to cut pieces from music.
+. * break priority setting from SCM.
+. * Gade score
+. * remove [] in favour of auto-beamer
+. * The minimum distance between different staffs works only within
+ StaffGroups, not between StaffGroups. The Gade Score looks quite
+ strange on the pages where the Timpani and/or Brass sections don't
+ play. I've set the minimum distance with:
+ \translator {
+ \OrchestralScoreContext
+ minVerticalAlign = 2.5*\staffheight;
+ }
+. * hangOnClef with non-breakable clefs.
+. * Aha, the problem is the new TeX code generation for changing fonts.
+> (The explanation below is mostly intended for Han-Wen and Jan)
+> Before, the font was changed with macros declared separately for
+> pure TeX and LaTeX, but now all the fonts are declared directly in
+> the generated code using the low-level TeX commands. This circumvents
+> the fontencoding mechanism of LaTeX and is a potential source of
+> problems also for us users of the Latin-1 character set.
+> I think it still works since the inputencoding latin1 is
+> declared by ly2dvi, but it still means that e.g. an o with
+> umlaut is typeset as a combination of the two symbols 'o' and
+> 'umlaut' instead of as a single character, as would be the case
+> if fontencoding OT1 had been used. This shouldn't give any
+> difference in layout, though. One of the main argument for using
+> fontencoding OT1 is for the hyphenation mechanism to work, an
+> argument that's clearly irrelevant in our application. Yet we
+> see the problem for August.
. * Check gcc 2.8.1 compatibility
-. * make "in-between" engraver (Tie, Extender)
-. * use Drul_array for Interval.
-. * ties to tie only notes of the same pitch, so that
- < a~ a,> a
-works as you'd expect it to.
-. * 1. Can Lily be told where to start numbering?
-. * do scaled fonts.
-. * profile atom smobs
-. * Try to use Killing_cons iso. Pointer_list
+. * Abstraction for engravers:
+. * make "in-between" engraver (Tie, Extender)
+. * make wide_spanner_engraver (line_group_spanne,r staff_symbol)
+. * remove Interval dim_ from Dimension_cache and rename the struct.
+. * merge align_element and axis_element_group.
+. * do scaled fonts generally
+. * The Lilypond accidental symbols are available through the TeX macros,
+\textflat, \textsharp and \textnatural defined in the init file
+lilyponddefs.tex. All the symbols are defined in the files fetaXX.tex
+where XX corresponds to the size. I don't know where (or even if) they
+are installed but they are generated in the mf/out/ directory during the
+compilation.
. * make dependencies () a virtual function.
. * fix Repeated_music design
. * one big ly2dvi input that includes *all* tests.
-. * Don't use boolean properties (0,1), instead check existence
-of property.
. * store req -> element, element -> element causes for warnings
. * junk Text_def, use G_text_item in stead.
. * junk Script_def
+. * include examples in RPM.
. * fix partial measures in meaningful way.
-. * fix AFM for BlueSky AFM files.
. * working notehead style.
. * add scripts to bars eg. |^"bla"
. * relative mode for mi2mu
. * --prefix option?
. * -I option per filetype?
. * kpathsea?
-. * todo doc left/rightbeamcount
-. * doc Single_malt_grouping_item
+
. * ly2dvi/lilypond logfile.
. * How can I specify a chord whose duration is longer than a whole note?
\type ChordNames { \chord{ A1*2-min } }
-Use of semicolons is still rather confusing. They are obligatory
-after some types of assignments and illegal after others.
-
- \property foo=bar illegal
- foo = 3 at top level illegal
- foo = 3 inside \paper obligatory
- foo = \notes{ ...} top level illegal
- foo = \translator{ } in \paper obligatory
-
-As far as I can tell, the sole accomplishment of this syntactic
-irregularity is to keep the user as confused as possible.
-
-
-I was trying to get interstaff beams to work and did this:
-
-\score{
-\type GrandStaff <
-\type Staff=one \notes\relative c'{
- \stemup
- [c8 c \translator Staff=two \stemup c c]
- \translator Staff=one
- \stemdown
- [ b8 \translator Staff=two a8]
- \translator Staff=one
- c4
- }
-\type Staff=two \notes{ \clef bass; s1 }
->
-\paper{
- \translator{
- \GrandStaffContext
- minVerticalAlign = 3.0*\staffheight;
- maxVerticalAlign = 3.0*\staffheight;
- }
- linewidth = -1.;
-}
-}
-
-The beams are at the right angle, but they aren't in the right place.
. * fractional chord durs.
. * hang Item on Spanner
-. * remove Interval dim_ from Dimension_cache and rename the struct.
. * do --safe for PS output?
. * convert-mudela --output
. * Staff_margin (with a partial measure.)
-. * fix "I've been drinking too much"
. * fix pletvisibility properties:
. * bracket on/off/no-bracket-when-beam
. * num on/off/no-num-when-beam
. * fix: standchen.
-. * junk backlinks?
. * junk text{sharp,flat,etc}
. * fix convert-mudela manpage
. * decimal point in \paper {}
. * sharp /flat on trills (in MIDI ??)
. * scm-ify \property values.
. * move class Lookup {} into scm
-. * collisions/voices \voiceone \voicetwo are broken; see
. * msgfmt -o check?
. * \breathmark TeX macro
-. * catch GUILE errors?
. * add new glyphs to font.ly
. * formatting of input stuff.
. * \notes{ a \< b \cr } vs \notes{ a \< b \! }
-. * if possible, it might be nice for a warning to appear if someone does
- \translator with no name and without assigning it to an
- identifier.
. * space after bars?
. * 'hinterfleisch' before bar (e.g. wtk1-fugue2)?
-. * \type Voice \times 2/3 { [c8 c16 c16 c16 c16] }
-. * repeat bars: need distance after ":|" and before "|:"
. * Summary of minor spelling irregularities:
. * capitalization/use of underscores in property names
. * fix SkipBars -> skipBars
-
-. * fix marks/barnumbers/marginal notes
. * broken scripts:
lbheel = \script { "bheel" 0 0 -1 0 0 }
rbheel = \script { "bheel" 0 0 1 0 0 }
portato= \script { "portato" 0 -1 0 1 0 }
. * ly2dvi
. * bottomnote for ly2dvi
-. * cf'able ly2dvi tagline.
. * deps for ly2dvi
.* STUFF
-. * check out legal/(c) matters for scores.
-. * check out GCC signatures?
+. * compulsory hshift
+. * arrows on slurs.
. * Align_element::padding ?
. * uniformise property names...
. * ydirection <-> yDirection
. * strip EXEs before installing
. * zip target for binary windows dist (JBR)
. * junking \skip req in lyrics
-. * Language:
-. * \type -> \context ?
-. * \translator -> ?
-. * fix \partial
-. * \bla {} vs \bla ;
-. * mix engraver hacking with music ?
-. * \once\property KEY = VAL
-. * \addtranslator, \removetranslator
-. * junk ^ and _ for scripts
-. * junk _ for lyrics.
-. * abstract grammar.
. * percussion note heads
. * mi2mu empty staffs.
. * horizontal centering of dynamics
-. * gzip RH manpage
-. * stable make/config stuff
. * $DEPENDENCIES_OUTPUT support
. * Xdvi zooming ?! Try to understand GS garbage collection.
- gs: Error: /undefined in draw_beam
- gs: Operand stack:
+gs: Error: /undefined in draw_beam
+gs: Operand stack:
. * fix vertical alignment and stafflines
+. * declaring Performers
. * GrandStaff needs more work -- I want a single word
`harpsichord' to the left of the grandstaff, not one on each
stave. (Organ staff -- with separate pedal -- but common
through, so the \property Voice.Instrument would be a stop,
and \property GrandStaff.instrument would be PipeOrgan...)
. * revise the Score_priority_align_engraver concept. It sucks.
-. * make new VoiceOne, VoiceTwo, VoiceThree contexts with
-ydirection and hshift preset
. * *.yo: fix pod manpage layout legacy
. * text-items clash with stems/beams
. * --include, -I option for ly2dvi (pass on to lily)
<{\voiceone cis4. cis8 cis4 | cis4 cis cis | r1 }
{\voicetwo cis,4 r r | r2. | r1 }> |
}
-. * try to use template<Type> iso MACRO(Type)
-. * NEWS: ... Musical_pitch (analogous to Duration and Rhythmic_req)
+. * Musical_pitch (analogous to Duration and Rhythmic_req)
think about, analogous to pitch:
* { a4 a16 } c <-- duration of c?
* < a4 b8 > c <-- duration of c?
. * split error/warning in error/warning/non_fatal_error
. * add a Duration_convert member to Duration_iter to set parameters.
Junk global duration settings.
-. * minimum length second part broken tie
. * en-,discouraged linebreaking:
. * handle DISALLOW < penalty > FORCE
. * discourage breaking of slurs
. * <\voiceone c4. \voicetwo c4>
. * add full cello suites to web site (kom op, Maarten!)
. * Rethink Time_description
- * \cadenza , \meter, \grouping should all be \properties
+\cadenza , \meter, \grouping should all be \properties
. * rename
. * measure -> bar
. * abbrev -> tremolo
. * move paper vars into engraver properties
. * check for groff / troff/ nroff et
. * more intelligent file searching
-. * make LilyPond RPM fully relocatable
. * disable spaces in TeX stuff
. * handle ^C for tmp/file creation.
+. * make LilyPond RPM fully relocatable
. * dots & rest collisions.
. * documentation
+. * remove links to non-free SW.
+. * internal documentation
+. * a general paper.
+. * \properties
+. * left/rightbeamcount
+. * various other new properties.
. * introduction?
. * info?
. * LaTeX?
. * more manpages?
-. * versioning for Feta
. * the warning about the negative slur/tie length appears twice
- which is irritating.
-. * The `3' in the meter key is a one or two pixels too thin (at 600dpi)
- in the middle:
-. * the bracket is ugly (wings are too parabolic, should be more circular)
+which is irritating.
. * better hshift (dots, distance, head dependent)
- * clefs (AG): The "8" should appear closer to the actual clef,
- touching it.
+. * clefs (AG): The "8" should appear closer to the actual clef,
+touching it.
. * put errorlevel in Input class
. * junk nesting slurs
. * integrate midi-elts from mi2mu and lily?
+
+.* FONT
+. * the bracket is ugly (wings are too parabolic, should be more circular)
+. * versioning for Feta
+. * The `3' in the meter key is a one or two pixels too thin (at 600dpi)
+ in the middle:
+. * design macro for penstroke with rounded endings
+. * timesig C: fat yet less curved. Check out relations.
+. * design decent macro for bulbed endings
+. * printer dependencies.
+. * y-refpoint for rests should be the 4th staffline (gclef: b')
+. * clean-up eight+ rests
+. * versioning
+. * lo-res fixes.
+. * work out sizes of character fonts.
+. * more symbols
+. * piano pedals: Ped/*
+. * maxima notehead
+. * coda signs: Segno, O+
+. * glissando, arpeggio
+. * lengthened trill
+. * 128th flags
+. * include important spacing dims in fetalog
.* 3RD PARTY BUGS
. * GNU diff 2.7: diff -rN does not see a new directory with empty file
+. * check out GCC signatures?
. * glibc 2.0:
f = fopen ("/dev/null", "r")
assert (feof (f))
+
+. * tetex: mfplain.mem
.* 3RD PARTY PROJECTS:
. * make GCC warn about ctor that leaves member vars uninitialised.
. * GNU patch
. * fontlock: \melodic \melodic
. * use properties for:
-. * plet?
-. * Staff_sym size
. * default tempo.
-. * font size
-. * bartypes (get rid of derived Span_bar_engravers)
. * cadenza mode?
. * page handling:
. * slurs
. * accents
. * dynamics
+
+> Would it be hard to add support for proper dynamics in MIDI output? I
+> would really like to have this feature...
+
+To answer this, I have to give a little background. Please say so if
+I am being obtuse.
+
+Both audio and notation elements are created decentrally, when
+LilyPond says "Interpreting music ... [8][16] etc." After all
+elements are created, they are processed again to calculate all
+parameters. After that is done, they are dumped onto the output (the
+MIDI stream or the TeX file).
+
+The audio and notation elements are created by objects called
+performer and engraver respectively. They work by taking a chunk of
+input (a so-called request), and using the request to create an audio
+or notation element.
+
+After some processing, the engraver sends the created elements to
+its enclosing notation/performance context.
+
+In the case of notation, engravers can also modify existing elements
+created by sibling engravers. Eg. the beam-engraver will modify stems
+when it creates a beam over a couple of stems. This is done in
+Engraver::do_acknowledge_element () and
+Engraver::do_process_acknowledged ().
+
+In the case of audio, there are no mechanisms to modify existing audio
+elements. After the audio elements are created, they are sent directly
+to the enclosing context (an instance of Performer_group_performer),
+through the method Performer::play ()
+
+Concretely spoken, for dynamics you have to write a performer
+(Dynamics_performer), that will take the input requests. If I
+understand correctly, every MIDI note played must have its dynamic
+strength set separately. That means the the Dynamics_performer must
+set the strength of every Audio_note it finds. This means that one
+has to modify existing Audio items. The best way of doing this is
+with a broadcast/acknowledge process.
+
+So the best way of handling this, is
+
+ 1 supporting dynamic settings in Audio_note
+
+ 2 mimicking the broadcast/acknowledge mechanism of the Engravers in
+ the Performers
+
+ 3 using that mechanism to write a Dynamics_performer that will modify
+ any notes it finds to set appropriate strengths.
+
+You could also kludge this by deriving from Performer_group_performer
+a performer that also sets dynamics within notes, but that is not the
+elegant way to do it.
+
+I'd say that the work involved is not hard, but you have to be fluent
+with C++ and need some insight into the working of Notation Contexts
+and friends. I guess I could do it in a day or so, but if you are not
+so fluent with the inner workings of LilyPond, it could take you some
+more time (A few more days?).
+
+Please note, that I am *not* going to code this myself: my days are
+valuable, and I think I have more interesting things to do than fixing
+the MIDI output (I don't even have a soundcard). But I *do* want to help
+you or other people with implementing this, so if you need help, don't
+hesitate to ask.
+
. * account for rhythmic position in measure
. * etc.
. * quiet/ignore-version options
. * logfile output
-. * elaborate Staff_side baseclass:
-. * scripts
-. * text
-. * slur start/end
-
. * PS
. * speed up PS code.
. * PS lines to .eps files
. * write custom prolog
-. * Output an output format independent (ofi) typeset file; and
- make ofi2 TeX, MusiXTex, Display PostScript, PostScript,
- Ascii... interpreters. (difficult)
-
. * NIFF ?
. * Common Music Notation
. * PostScript output (esp. Beams, Slurs, etc)
. * Rewrite Stem, Beam and Rhythmic_grouping (hairy)
. * [c8. c32 c32]
- **** doc on Rhythmic_grouping
+. * doc on Rhythmic_grouping
. * general shaving on Beam and Stem
. * use plet grouping
. * separate visual from rhythmic info even more
. * beams over bars
. * lines:
-. * Ledger lines, should be separate item: Ledger_lines, Ledger_lines
+. * Ledger lines, should be separate item: Ledger_lines
. * set different line sizes / thicknesses
. * beam stem showthrough, inter beam sizes (french vs german style)
. * caching breakpoints
. * saving them
. * specify number of lines
-.* INPUTLANGUAGE
+.* INPUTLANGUAGE
+. * Language:
+. * \type -> \context ?
+. * \translator -> ?
+. * fix \partial
+. * \bla {} vs \bla ;
+. * mix engraver hacking with music ?
+. * \once\property KEY = VAL
+. * \addtranslator, \removetranslator
+. * junk ^ and _ for scripts
+. * junk _ for lyrics.
+. * abstract grammar.
+. * Figure out semicolons.
. * c4 4 4 4 for c4 c4 c4 c4?
-. * neatly (and readably) expressing concurrent
- voices
. * <c f a>4 ?
. * Viola mode?
@A c g e g
for
cis gis e gis
-. * relative mode for pitch entering
. * configure pitch_byte
. * rest name configurable
.* SMALLISH PROJECTS
-. * limit memory usage; the full coriolan takes up too much resources.
-
. * fix confusing naming in Engraver vs Engraver_group_engraver (context)
. * progress when creating MIDI elts.
. * handle EOF graciously in error messages.
-. * declare notenametab?
-
. * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)
. * stafftypes: voice names/ instrument names.
. * lily \tempo
-. * C meter iso 4/4, idem for alla breve, etc.
-
-. * textspanner: center position
-
- * % toe to bheel four to five
+. * % toe to bheel four to five
% ^_u 4_5
% -
% --|x-- --|x--
. * Text_crescendo
-. * clean solution for staffsize in items.
-
. * revise calcideal
+
.* IDEAS
. * Output data structures of Mudela in XML/SGML.
. * create libmudela, or liblily_frontend
. * caching breakpoints
. * used fixedpoint arithmetic for min. energy.
. * move towards incremental algorithms.
-. * far fetched language ideas
-. * design meta-language like TeX and Metafont
-. * programming/macros input
. * versioning stuff (cvt mudela, mudela, etc.)
-. * Klavarskribo?
. * dynamic loading of engravers?
.* SMOBS
Han-Wen Nienhuys <hanwen@cs.uu.nl> writes:
-> mcmanus@IDT.NET writes:
-> > > I want different C++ objects (with scheme embedded) to be linked by
-> > > C++ pointers. I want to access these other objects from the Scheme
-> > > code, and I want access to these pointers from C++.
-> >
-> > You can do this with a combination of smob's and primitive functions,
-> > though it may not be be exactly what you wanted. You would have one
-> > smob for each class in your application, and then you would write a
-> > primitive function that would return the objects that are linked to a
-> > base object.
->
-> And the smob and the C++ class are interlinked? Like
->
> class Foo_class {
> Foo_smob *smob_ptr_;
> }
projects / lilypond.git / blobdiff