Comment 13 for bug 342952

Found another workaround that I committed to lp:mixxx/1.7

MIDI short messages are now queued using event queueing, and they are scheduled 1 nanosecond apart. System exclusive messages are still done via direct queueing. The sequencer is still opened in non-blocking mode.

Sean and I both confirm that the problem no longer occurs with the workaround. We should continue to look into the root cause behind this, but for release purposes, I'm marking this fix committed.