In pd at the moment I work on all-purpose synthesizer patches to get away from the one patch is one song paradigma,  I recreate to often the same stuff without reusing it. The goal is to create patches which are equal in usage as the hardware pendants. A first demo ogg is here, baddly played on a midikeyboad.

It will be available for free but I am not sure about it in the future, because distributing patches for PD is troublesome when you require certain modules which might not available on other distributions. A self contained system is much more desireable, maybe as DSSI plugin (the VSTI equivalent on Linux) or standalone application.