> Note that there's nothing at all in modules.conf for the > Radium keyboard. It's simply a MIDI controlling keyboard, > it makes no sound on its own, it would be used simply to > control soft synths on the PC. Anyway, you need the module snd-usb-audio for it, because this module handles MIDI as well as audio over USB. On ALSA, there's no singular dedicated usb-midi-module to only handle MIDI data (AFAIK in older ALSA versions usb audio and midi have been two different modules, but this has changed). > > I believe snd-usb-audio supports up to 8 devices, so you > > should be able to define the 2 you are using to control > > the order in which they appear on your system. > > I'll definitely take a look at this approach, as well as > modifying an asound file. The file has to be created, it does not exist per default. I have two USB cards and do not use an /etc/asoundrc Best regards ce