2 music.hh -- declare Music
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 #include "virtual-methods.hh"
13 #include "minterval.hh"
14 #include "music-constructor.hh"
16 #define is_mus_type(x) internal_is_music_type (ly_symbol2scm (x))
18 /** Music is anything that has duration and supports both time compression and
21 In Lily, everything that can be thought to have a length and a pitch
22 (which has a duration which can be transposed) is considered "music",
24 Music is hierarchical:
29 TODO: make a equalp function for general music.
35 Music (Music const &m);
36 VIRTUAL_COPY_CONSTRUCTOR (Music, Music);
38 Input *origin () const;
39 void set_spot (Input);
41 SCM internal_get_property (SCM) const;
42 void internal_set_property (SCM , SCM val);
43 SCM get_property_alist (bool mut) const;
44 bool internal_is_music_type (SCM) const;
45 int duration_log () const;
47 virtual Pitch to_relative_octave (Pitch);
49 Moment get_length () const;
50 Moment start_mom () const;
52 /// Transpose, with the interval central C to #p#
53 virtual void transpose (Pitch p);
55 /// Scale the music in time by #factor#.
56 void compress (Moment factor);
59 DECLARE_SMOBS (Music,);
60 SCM immutable_property_alist_;
61 SCM mutable_property_alist_;
65 friend SCM ly_extended_make_music (SCM, SCM);
68 DECLARE_TYPE_P(Music);
69 DECLARE_UNSMOB(Music,music);
71 Music *make_music_by_name (SCM sym);
72 SCM ly_music_deep_copy (SCM);
73 SCM ly_music_scorify (SCM, SCM);