Now don't get me wrong, nobody plumps up a cushion higher than i do for a BBC4 rockumentary but we really should be issued with some sort of interactive QI-siren kit for when the following inevtitable cliches appear from the mouths of musicians -

1. "Nobody had ever seen/heard anything like it before" YES. THEY. HAD. In fact in all probability they'd seen/heard The Beatles do it.

2. "I just bought my first guitar/drumkit & I've never looked back" In other words i bought my first guitar/drumkit 20 or 30 years ago, had some success for 18 months & have been looking back on those golden years ever since.

3. "Yeah, i wrote [insert name of biggest hit] in 5 mins while i was having a piss and doing a crossword". Neil Sedaka has a particularly self-congratulatory spin on this that sees him writing his 3 most famous songs in half an hour - the inference being that his talent was prodigious enough to allow this, and that he could be that great that easily.

Any more examples, boys & girls...?