Speaking of left-handed bass, I always assumed that Paul McCartney was a bass hero. He certainly is a superb composer/singer/musician, and a hero of mine in many ways. But listen to "Get Back", with separate tracks for each instrument. I feel a little silly critiquing McCartney, but to my untrained ear the bass does not sound particularly steady (or imaginative). Perhaps someone with more experience can weigh in on this. If you want to skip to the bass, it starts at 5:04. Here is when each instrument appears: Guitars: 0:00-2:35, Drums 2:36-5:04, Bass 5:06-7:50, Electric Piano 7:52-10:41, vocals, full band.