Perry has written the riffs you know and love at soundchecks ... that's kind of a waste of a good tuning peg," so I took a bass string, put it on the guitar, and tuned it in unison, only an ...

and relate to the rhythm of the guitar part. Many pop songs will use bass riffs. This is a short catchy tune. They fit with the notes in the chord but other notes may be used to make it more ...