No more heroes.

There are plenty more players out there well worth checking out in the Appendix - Geezer Butler, JJ Burnel, John Paul Jones, Foxton, McCartney - and that's before you get into your technical uber maestros like Flea, Geddy Lee and (whisper it) Jaco Pastorius.

The good news for students of the B-CNT method, is that ability isn't necessarily everything.

It's pretty well documented that the Pistols used to turn Sid's amp off. Didn't stop him becoming a punk icon. Pete Wentz, bass player for Fall Out Boy, is widely derided for his poor skillz throughout the interwebs. Even so, a guy with only this much ability can still boast having his own signature model bass in production.

But a final, special mention needs to go to Mr Adam Clayton.

Bono said of Clayton's early bass playing, "Adam used to pretend he could play bass. He came round and started using words like action and fret and he had us baffled... We thought this guy must be a musician, he knows what he's talking about and then one day we discovered he wasn't playing the right notes, that's what's wrong, y'know?"

In the band's early years, Clayton "generally played simple parts in 4/4 time." Many would argue he continued to do so in their latter years:



But then, as part of U2, he's won no less than 22 Grammy awards...

And here endeth the lessons.