Songs are rarely more concise than the shortest song I ever played, by request, for a KCOU listener. The caller requested "All" by the band All. For the uninitiated, the song is one second long and consists of the band shouting, "All!" I played it, and I'll admit it tested my turntable segue reflexes. Rarely does a DJ have to segue a one-second song with another song so rapidly. I made it work, and fortunately, it was just a once-in-a-lifetime test.