2 music.hh -- declare Music
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
14 #include "virtual-methods.hh"
16 #include "minterval.hh"
17 #include "lily-proto.hh"
20 /** Music is anything that has duration and supports both time compression and
23 In Lily, everything that can be thought to have a length and a pitch
24 (which has a duration which can be transposed) is considered "music",
26 Music is hierarchical:
31 class Music:public Input {
35 virtual Musical_pitch to_relative_octave (Musical_pitch);
36 virtual Music_iterator* to_rhythm (Music_iterator*);
38 /// The duration of this piece of music
39 virtual Moment length_mom () const;
43 /// Transpose, with the interval central C to #p#
44 virtual void transpose (Musical_pitch p);
46 /// Scale the music in time by #factor#.
47 virtual void compress (Moment factor);
48 VIRTUAL_COPY_CONS(Music);
52 virtual void do_print() const;