2 event.hh -- declare Event baseclasses.
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
15 #include "virtual-methods.hh"
18 #include "duration.hh"
21 /* An atom of musical information. This is an abstract class for any
22 piece of music that does not contain other Music. */
23 class Event : public Music
27 VIRTUAL_COPY_CONSTRUCTOR (Music, Event);
28 virtual void compress (Moment);
29 virtual void transpose (Pitch);
30 virtual Moment get_length () const;
31 virtual Pitch to_relative_octave (Pitch);
38 class Key_change_ev : public Event
44 VIRTUAL_COPY_CONSTRUCTOR (Music, Key_change_ev);
45 void transpose (Pitch d);
48 SCM ly_transpose_key_alist (SCM,SCM);