MIDI Playback
MuseScore is very good notation program. I can say so as former user of Finale and Sibelius.
But it not reaches the desired level under playback functions. What are needed at first, in my opinion?
1. Because there was the ability to play SFZ via Zerberus and, in particular, VPO (VirtualPlayingOrchectra), MuseScore, at least, should be supporting for MIDI Controller 1(0) "Modulation", MIDI Controller 7(6) "Volume", MIDI Controller 11(10) "Expression" for proper playback. Now it only "Velocity" and MIDI Controller 64(63) "Sustain".
2. Parallel playing back on MIDI keyboard along side a score. It is very important for composers.
There are many other stuff of course but that's for later.
Best regards
Alex54m
Comments
MIDI out is already possible via "Jack", and in the nightly builds for the next versions of MuseScore, it is possible directly from within MuseScore. So your choice - try installing and configuring Jack, or try a nightly build, if this is important to you.