He plays a steady eighth-note pattern bouncing around the root, 5th, 4th, and 7th relative to the chord. The rolling ascending and descending bass line helps the riff repeat seamlessly.

The musical cycle contains seven notes, popularly sung to do-re-mi-fa-sol-la-ti. There is, however, an eighth note – do. The eighth is the same as the first, except it is sung one octave higher.