http://lmms.sourceforge.net/ - аналог fl, по сути клон, но охуенный, тянет вст без танцев с бубнами
LMMS aims to be a free alternative to popular (but commercial and closed-
source) programs like FruityLoops, Cubase and Logic giving you the ability of
producing music with your computer by creating cool loops, synthesizing and
mixing sounds, arranging samples, having more fun with your MIDI-keyboard
and much more...

LMMS combines the features of a tracker-/sequencer-program (pattern-/channel-/
sample-/song-/effect-management) and those of powerful synthesizers and
samplers in a modern, user-friendly and easy to use graphical user-interface.

зы дайте мне управляющего темой, или сделайте шапгу и крепите в нее ссылке