Some Free Software alternatives:
"JACK / qjackctl (the GUI for JACK), the tool for interconnecting audio,
MIDI, and sync between applications
Hydrogen Drum Machine
Ardour, the terrific, all-free DAW
Rakarrack, a free guitar effects tool set for Linux (one new to me, in fact!)
ZynAddSubFX, probably the most capable free standalone soft synth – ugly,
but very powerful, and a candidate for a 'desert island' synth.
[Audacity, basic audio editor.]"
Got this from
http://createdigitalmusic.com/2011/04/making-music-with-free-and-open-source-software-top-picks-from-red-hat-dave-phillips/
