2004-07-05 * Rests and Notes Rests and Notes are the sonic atoms in a Music, whereas the other constructors structure the Music. Sonic atoms share the property 'duration' but in the original design functions like 'perf' couldn't benefit from that. 2004-05-23 constructor 'Sequence' instead of ':+:', 'Parallel' instead of ':=:', implemented +:+ and =:= as replacement for these constructors '=:=' meant a meter change before, turned it into '=/=' the optimization algorithms in ReadMidi are partially wrong or optimize too less or let me doubt about some the structures of Haskore 2004-05-22 'div' instead of 'quot' for Note conversion