MidiO does *ok* with some Midi Out duties. But I may have pushed it too far.

With my Atari ST MIDI'd *IN* to my Mac and recording with Garage Band (same tempo but, alas, no sign of real MIDI Sync/MTC/clock), GB does a fine job recording. I play my transferred compositions back inside GB using the software instruments, and it's right on time and in tempo.

But, I have external synths to go with these songs, and GB doesn't quite measure up to them.

With midiO the songs - even if I'm playing a track solo - are totally warped. You'd think there was a drunk in the room on the keyboards! Why the sync issue occurs is beyond me - but I'd hazzard to guess that midiO's buffer is either too small or conflicts - somewhere - with GB.

The developer is DEFINITELY on the right track. Give us a version 2 with options (e.g. for buffer size) or more direct integration with GB (vs. the audio units path). Add some sort of sync (perhaps wired into Apple's own Core MIDI?) and, heck, we'll practically offer to bear your kids. (Well, not really that.)