Disklavier

Dear Disklavier-Specialists,

I am preparing an empirical musicological study, in which I work with the
Yamaha Disklavier MX100II. To manipulate the COM-ESEQ songfiles I studied
the
file format, which seemed to be very easy to understand. But things are not
so easy as they seem....
So I have difficulties with the duration commands. As I understand the format
there are two: F3 and F4. F3 followed by a byte (00-7F) and F4 followed
by two bytes (00-7F), first the low- and than the highbyte.
If this is right I wonder what time measurement hides behind these commands.
Because the values which I get from the file don't fit to the time the
Disklavier shows on its display during the playing of the song.
Can anybody help me?


With kind regards

Hans Brandner         email: hans.brandner@...