If I’m explaining to you what tremolo is for the first time, I might play you CCR’s intro to “Born on the Bayou” or The Black Keys’ “Howlin For You," but hands down, a song you never want to hear while riding that spinning teacup ride at Disney World is “Crimson and Clover” by Tommy James and The Shondells. Tremolo shows up on the guitar, bass and vocals tracks.