M4L Tide Synthesizer

It's not free, but 10 euros for the album and synth is a pretty good price considering the synth's capabilities.

Isn't there a v2 out? I can't find the link, for some reason.

And yeah, it's great value. It's just buying it at bandcamp, right? That's all it takes? Can't remember.

Yes and yes - there's a v2 out: http://www.youtube.com/watch?v=GJUdJdThBrU and all it takes is buying the album from Bandcamp... -> http://christiankleine.bandcamp.com