It sounds like an old-school vinyl record, but the distinctive crackle in the music streamed into Chris Holloway's laboratory is atomic in origin. The group spent years finding a way to directly measure electric fields using atoms. They don't expect the atomic-recording's lower sound quality to replace digital music recordings, but the team is considering how this "entertaining" example of atomic sensing could be applied in communication devices of the future. This is a Rydberg atom recording of an acoustic guitar played by C.L. Holloway.