Disklavier

Good morning, everyone.

On Sep 9, 2008, at 6:03 PM, Spencer_Lists wrote:

> Joan,
>
> I got your kids songs and tried to play them with my file player.  
> Your files all use note off events instead of note on with velocity  
> 0 to turn them off. This is unusual although legal MIDI. What is  
> most strange is that the velocity in the note off message varies and  
> is not 0. I have never seen this before. It may be some way of  
> encoding aftertouch with which I am not familiar....
>

I cannot comment on how Joan's files were made, but I can say that the  
Disklavier does use note-off messages instead of note-on with velocity  
0. This is important in the case of the models that actually measure  
the speed of the key release and use this information during playback.

Although I am not absolutely certain, I think that all Disklavier  
models that do not measure release velocity generate note-off with  
velocity of 64 when the key is released.

It seems to me that note-off with a velocity of 0 is a meaningless  
concept, but I think that it is a legal message.

Regards,
PianoBench