You have continual loops of drums, bass, and vocals on a twenty four different mp3 players you have collected over the years as better ones came out. You hook them up to a mixer unit you made. All the players play at the same time and your mixer fades the players in and out in the over all mix. It's a clunky awkward instrument but you made it yourself and you can make semi-interesting music with it and record it onto your old tape deck.