The lead voice is the BASS7 predefined tone played with the gate turned to legato all the way to 11. The bass line is just a bunch of sixteenth C4s with some rests here and there (the rhythm is changed just once). The drum track is very basic and does not change one bit throughout the composition. The lead voice is all A minor scale, the relative minor of our good friend, the C major scale.
Playing near random notes within any given scale would probably sound good with enough modulation (and possibly some delay).