Thanks for listening, ripov, Freddie and Bill. It was fun constructing the sound of the ragged engine. Much of it is dotted quarter notes, and I mixed in sixteenth notes and sixteenth notes in triplets. The notes are seven lines and a space below the bass staff.

The small difference between triplets and non-triplets is what makes the engine sound ragged.

The tune, which is in Dm, came bubbling up in my head as I sat there, listening to the motorcycle.