I've just compilied and installed 0.9.3. A quick run looks pretty impressive.
However, I can't for the life of me to get output to my external synth. The first time I run mscore I did have some transport buttons, but those seem to have disappeared :)
In preferences->i/o I click and I guess at . Restart. No joy. Use no difference.
I do have a synth and it works using "aplaymidi -p 16".
bob$ aconnect -io
client 0: 'System' [type=kernel]
0 'Timer '
1 'Announce '
client 14: 'Midi Through' [type=kernel]
0 'Midi Through Port-0'
client 16: 'M Audio Audiophile 24/96' [type=kernel]
0 'M Audio Audiophile 24/96 MIDI'
client 20: 'USB Uno MIDI Interface' [type=kernel]
0 'USB Uno MIDI Interface MIDI 1'
client 128: 'MuseScore' [type=user]
1 'MuseScore Port-0'
2 'MuseScore Port-0'
I do not have JACK running.
I would think that the should correspond to the ALSA ports? But, I can't enter "16".