Not that I'm aware of...I think with the Amiga you'd have to do it with samples played at low intervals to get a drone effect. I really like the ambient stuff from Tangerine dream and sampled stuff from some of their earlier albums and I'm discovering music from the likes of Manuel Gottsching as a reference to early house music. Doing effects with the Amiga was a matter of adding command effects to distort sound which still sound crisp and nice for these times:)
