Up to now, when I've been creating music (I use an older version of Finale), I've been limited to 16 voices; if I want more tracks, I have to assign multiple trace to the same voice channel (eg Flute 1 and 2 > "Channel 1, Flute" and even if I'm desperate, Flute 1, 2, Piccolo > "Channel 1, Flute"). Also the Drum channel was always channel 10 (because that's the spec as far as I know).
Is this going to be changing in MIDI 2.0? I haven't read much of the new documentation, and what I have read hasn't addressed this.
I'd love to be able to create 20-50 individual tracks (each instrument part has their own track), and also be able to split the percussion tracks and not necessarily have it locked into channel 10. Eg currently in an orchestral piece, Bass Drum, Snare, Toms, Cymbals, could be four staves, but they all are linked to channel 10. I'd love to split that in to four channels, say on 10, 11, 12, 13 -- and have it play back correctly.
This has been my biggest pet peeve of MIDI 1.0 thus far.