if your usb soundcard and speakers are making a high pitched squeel try putting it through a usb hub.
- rocksmith usb adapter from an xbox 360 for guitar.
- ableton launchpad – with launchpad-ctrl opensource drivers
- zoom h2
- ableton triggerfinger
- 5.1 digital sound from c106 usb audio
usb condenser microphone – ebay 20 dollars. great linux support
- qjacctl – for managing audio connections
If you are needing something solid and you want to get serious about being a live musician give Ableton Live a try.I would say the workflow is better as an artist than what linux can provide in one application.
Voice Synth – Hawking Edition
Beastie Boys – fight for the right to party.
voice the comments say its a virus though.
aparently guitarix and rakarrack both have this feature of guitar to midi converter
roland dk3 and di10 work well for getting the midi from acoustic and electric but cost $$
casio dg1 10 20 and 30 are still about $200 and have been around since early 1980’s