[ubuntu-studio-users] Need advice/help with Qjackctl and some other related programs it supports

[Ralf Mardorf]

One MIDI output/input can use 16 separated MIDI channels at the same
time. Do you care about MIDI channels?

Channel names could be named 1 to 16 on one device, but 0 to 15 on
another device. In addition a device might provide an option "any" or
"all" or "omni", resp. "omni on", this does mean that all 16 channels
are send/received/played.

What you want is that track one sends on e.g. MIDI channel 1 and track
2 on e.g. MIDI channel 2. One instance of QSynth should receive MIDI
channel 1 and the other MIDI channel 2. It's same for your external
keyboards, unfortunately some oldish keyboards tend to send on MIDI
channel 1 only, if so you need a filter application to transform from
MIDI channel 1 to another MIDI channel.

Perhaps you're aware about this and there's another issue, so before I
continue to explain in broken English ... Do you already care
about MIDI channels?