RetroPipes
RetroPipes
The GDX team released 1.9.9 a while ago, and is working on 1.9.10 (which has a changelog, but no builds yet). However, this app defaults to 1.9.8. Specifying it manually...
Much like what QuickTime Player 7 offered for MIDIs, APPlayMIDI should offer loop play as an option (resetting the MIDI engine when the song completes if this is needed, even...