Note value:
defined as a fraction of a 4/4 measure.
Note position:
3 values structure: [measure number, beat number, beat fraction]. The beat number is linked to time signature. Beat fraction is an integer between 0 and 95 (48 is the center between 2 beats. 96 values is the best solution to have a precise value for 4-multiple and 3-multiple note values.
Tempo:
numerical value corresponding to the number of beats per minute.
Time signature:
2 values, corresponding to the number of beats in the measure, and the note value that fills a beat (musical definition of time signature).
Dynamic:
integer value between 0 and 7, with the following correspondance: 0 for ppp, 1 for pp, .... 6 for ff, 7 for fff.
Legato:
integer value: 0 for staccato, 1 for normal/undefined, 2 for legato.
Duration tolerance:
numerical value between 0 and 100: 50 will mean we will detect no error if note is played between (t - note duration * 0.5) and (t + note duration * 0.5).