source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#ifndef MUSIC_HH
#define MUSIC_HH
-#include "plist.hh"
#include "virtual-methods.hh"
#include "input.hh"
#include "minterval.hh"
#include "lily-proto.hh"
+#include "string.hh"
-class Music:public Input {
-public:
- virtual MInterval time_int()const;
- virtual ~Music(){}
- void print() const;
- virtual void transpose(Melodic_req const *);
- virtual void translate(Moment dt);
- VIRTUAL_COPY_CONS(Music,Music)
- NAME_MEMBERS();
- Music();
-protected:
- virtual void do_print() const;
+/** Music is anything that has duration and supports both time compression and
+ transposition.
-};
+ In Lily, everything that can be thought to have a length and a pitch
+ (which has a duration which can be transposed) is considered "music",
-class Music_list : public Music {
-public:
- Music_list(Music_list const&);
- Music_list();
- NAME_MEMBERS();
- VIRTUAL_COPY_CONS(Music_list,Music)
- virtual void add(Music*);
- virtual void transpose(Melodic_req const *);
-protected:
- Pointer_list<Music*> music_p_list_;
-
- virtual void do_print() const;
-};
+ Music is hierarchical:
+ @see Music_sequence
-class Chord : public Music_list {
+ */
+class Music:public Input {
public:
- NAME_MEMBERS();
- VIRTUAL_COPY_CONS(Chord,Music)
- virtual void translate(Moment dt);
- virtual MInterval time_int()const;
-};
+
+ virtual Musical_pitch to_relative_octave (Musical_pitch);
-class MVoice : public Music_list {
-public:
- NAME_MEMBERS();
- VIRTUAL_COPY_CONS(MVoice, Music)
- virtual void translate(Moment dt);
- virtual MInterval time_int()const;
+ /// The duration of this piece of music
+ virtual Moment length_mom () const;
+
+ virtual ~Music(){}
+ void print() const;
+ /// Transpose, with the interval central C to #p#
+ virtual void transpose (Musical_pitch p);
+
+ /// Scale the music in time by #factor#.
+ virtual void compress (Moment factor);
+ VIRTUAL_COPY_CONS(Music);
+
+ Music();
+protected:
+ virtual void do_print() const;
};
#endif // MUSIC_HH