the only way to sell music would be if was tacked onto some commercial or somesuch other cornflakes.
There is no finer, purer or more anonymous way of generating revenue from music than lucking out by somebody using it in a widely distributed advertising campaign! I would far, far rather people knew who was making cornflakes, which were making money for me, than for anybody to know who I was, what I looked like or be able to recognise me in the street. Keep your No.1 single, crawling up to the BBC etc. and your adoring fans, who want to own you for free, as if you were their slave whilst mistakenly thinking you were in some way lucky or privileged. I'd take an invisible slice of bona fide advertising revenue over that nightmare any day. Your friend was a wise man indeed!
Strictly project and just for fun