“There are four small miracles in Can's "Chain Reaction"/"Quantum Physics", from 1974's *Soon Over Babaluma*. The first occurs at about 40 seconds into "Chain Reaction" when the 4/4 stomp of Jaki Liebezeit's drums line up with Holger Czukay's bass pulse, alongside tambourine and percolating drum machine; I realize that this song is closer to trance techno than the minimalist funk or psychedelic mot”