Hi Georgina, our track is 12 sources. It is an improvisation made on selfmade soundboards and other instruments. The total number of microphones and sound sources is the magic number 12. Stefano played his sound board, a korg monotron, a galaxy pad and an electric bass and processed everything through some old processors: Dynacord PDD14 and DDL12 and Roland SDE 3000. I have used my soundboard, an electric guitar and real time processing through Audiomulch, looping through Mobius.