[sdiy] Tips for writing a MIDI parser wanted

[Louis van Dompselaar]

> the thing that catches you out will be running status and those  
> "system realtime
> messages" (anythong 0xF0 to 0xFF).
> The other odd one is the two types of note off ;-
>
> 0x80, 0x3C, 0x7F
> 0x90, 0x3C, 0x00
>
> Both are valid note off's for the same note, *most* things seem to  
> use note (0x90) with
> zero velocity, but some still use note off (0x80) status bytes.

And it's not always 0x7F note off velocity either.  Some keyboards do  
actually
send a real note-off velocity value.