Some of you might find my program MIDIToy helpful for trying out that new MIDI code: http://www.goingware.com/freesoftware.html Please forgive the design of that page. It hasn't been updated in ten years. It's way down towards the bottom of my list of things to do. :-/ MIDIToy opens the first available MIDI output port then plays some notes. That's It! I wrote it to help myself get started at BeOS MIDI programming. I haven't actually tested it on Haiku, but it's not at all a fancy program so it ought to work OK. Mike -- Michael David Crawford mdcrawford at gmail dot com GoingWare's Bag of Programming Tricks http://www.goingware.com/tips/