> > as I'm googling around, I've read a couple of things about being able to do > > cat <sysexfilename> >/dev/midi00 > > > > but that has not yet worked :) > > and it wont in general because the timing is wrong - too fast i guess. I've managed to do it succesfully with /dev/sequencer and I'm using ALSA. cat sysex.txt > /dev/sequencer and my Korg 03R/W receives them happily. Of course the file must be carefully hand crafted, with hexedit or similar. And remember the manufacturer ID, if it doesn't match your synth, it discards the sysex string. The timing shouldn't be an issue unless you want to send sysexes at specific time, eg. when synth is playing and you want to tweak the parameters realtime. Tommi Uimonen