There is a VST plugin that runs Pure Data patches http://pd-pulp.net/ The Oxe FM synth is now available as a native Linux VST https://github.com/oxesoft/oxefmsynth There is a Renoise tool that provides an interface for the processors from the Composers Desktop Project. http://forum.renoise.com/index.php/topic/41882-new-tool-30-cdp-lua-tool/ Nick Dowell's amSynth now works as a native Linux VST http://amsynth.github.io/ RtCmix has the beginnings of an IDE useful for Linux users https://github.com/jwmatthys/cmixide Commercial interest is higher than ever, with samplers from Renoise (Redux) and discoDSP (Bliss), synths from u-he, discoDSP (Vertigo), and Tracktion (MicroSynths). Bitwig continues its climb towards a 1.2 release, the betas finally have JACK transport control and support for loading FXP/FXB presets into synths such as Obxd and Extent Of The Jam's DigitsVST. Lots of movement on the DAW front, with updated offerings from Renoise, Mixbus, and Tracktion. Good times for Linux-based musicians. Best, dp