struct General_script_def;
struct Graphical_element;
struct Music_output;
+struct Musical_pitch;
struct Music_output_def;
struct Global_translator;
struct Group_change_req;
+struct Hara_kiri_line_group_engraver;
+struct Hara_kiri_vertical_group_spanner;
struct Head_column;
struct Header;
struct Horizontal_align_item;
struct Keyword;
struct Keyword_table;
struct Lily_stream;
+struct Line_group_engraver;
struct Line_of_score;
struct Line_of_staff;
struct Line_spacer;
struct Pulk_voice;
struct Pulk_voices;
struct Rational;
+struct Music_wrapper_iterator;
+struct Music_wrapper;
+struct Relative_octave_music;
struct Engraver_group_engraver;
struct Performer;
struct Performer_group_performer;