This is a live performance, playing along an interactive pd-patch, controlled by the 4 instruments (mics) only. Mainly by dynamics- and pitch-analysis etc, used for further calculations . Patch is messy, but I'll gladly upload it, if someone feels like checking it out.
Martin Konetschnig: sax
Marco Baumgartner: piano, toy-piano, Pure Data programming
Mirco Häberli: bass
Here's the video:
Here, you can download the album (mp3, 2 tracks):