Here I do yet another live performance of a Commodore 64 SID classic: Delta, by Rob Hubbard from 1987.
Three Teenage Engineering Pocket Operators are used:
* PO-28 Robot: main lead, blips and drums.
* PO-14 Sub: bass and extra percussion.
* PO-16 Factory: secondary lead.
Both leads are played live, but some special tricks had to be done in order to overcome the "fixed scale" of the PO's, in this song that actually uses two scales. The PO-16 runs a few empty patterns where some notes on certain occasions are raised a half step. That way the range gets much wider.
Due to the 16-pattern limit of the PO-14 and PO-16 I had to break up the mid part and cut the parts together. Everything is done live though, so it's totally playable.
Hubbard borrowed quite a bit from Philip Glass' "Koyaanisqatsi" for this theme :)