There are two schools of thought on using sound to calm a baby. One is to play soothing music. Traditionally, this means lullabies, but the more recent trend is serene classical music. The other option is white noise such as a vacuum cleaner or radio static on the theory that it replicates the sound inside the womb. I've discovered a better option that combines both concepts: the wall of droning guitar that is Spaceman 3. My infant son always stops crying within the six minutes of "Walkin' with Jesus (Sound of Confusion)," as found on the Singles CD on Taang! Rocking and bouncing him helps, but he frequently falls asleep entirely during the track, with a better success rate than rocking and bouncing without such musical accompaniment.