I have a Yamaha SY77 synthesizer which I would like to access via Midi on Knoppix but I can't figure out how to get Linux/Knoppix to see it as a device nor sort out which program(s) can read/transmit midi data to/from the SY77.
It is connected to the computer via a RS232/Midi adapter on the computer's COM2: port.
I've tried a couple of program on the Knoppix distribution but they don't "see" the SY77.
Rosegarden's Midi setup has the device set to /dev/sequencer and there seems to be no way to change it - even if I knew what to change it to.
I've also downloaded a couple of sequencing programs but they don't see the keyboard either. One of them complains that it can't find /dev/snd/seq.

Can someone help me get this working please?
What I was hoping to do eventually was to convert a C program I wrote for my Amiga which can aid in the editing of voices. If I can find a program which actually "sees" the SY77 I can probably then figure out how to convert my own program.

Best Wishes
Pete