2 musical-pitch.hh -- declare Musical_pitch
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #ifndef MUSICAL_PITCH_HH
11 #define MUSICAL_PITCH_HH
13 #include "lily-proto.hh"
15 #include "lily-guile.hh" // we need SCM
17 /** A "tonal" pitch. This is a pitch as it figures in diatonal western
18 music (12 semitones in an octave), as opposed to a frequence in Hz
19 or a integer number of semitones.
21 It is not Music because, it has no duration associated.
23 struct Musical_pitch : public Input
25 Musical_pitch (int notename=0, int accidental=0, int octave=0);
27 /// construct from '(octave name acc)
33 /// 0 natural, 1 sharp, etc
39 Musical_pitch to_relative_octave (Musical_pitch);
40 void transpose (Musical_pitch);
41 static int compare (Musical_pitch const&,Musical_pitch const&);
42 /// return large part of interval from central c
44 /// return pitch from central c (in halfnotes)
45 int semitone_pitch() const;
54 INSTANTIATE_COMPARE(Musical_pitch, Musical_pitch::compare);
56 int compare (Array<Musical_pitch>*, Array<Musical_pitch>*);
58 #endif /* MUSICAL_PITCH_HH */