There is always a busker in the tube station I use when I go home from work. Occasionally they are terrible, occasionally they are excellent (in which case, I may even give them some money) but usually they are just ok. Inoffensive and forgettable.
However, I've noticed over the last few weeks, that on a Thursday it is the same man. The reason I've noticed him in particular is not that he is terrible or excellent. He pretty much falls into the average category. I noticed him because he played the song "The Streets of London". The first time I heard it, I thought "that's a good song for a London busker to play" but then today, on about the fourth time of seeing him play, I've given it some more thought.
Either, it is a huge coincidence that I happen to walk past every week when he's playing that song from his repetoire (I do leave work at roughly the same time every day, but still it seems unlikely). Or that is all he plays.
I don't know how long he is positioned there, but even if it is just one hour, that means playing that song about 12 times.
Either he only knows one song (in which case becoming a busker is particularly a poor career choice). Or he is the most cynical busker ever as this is obviously a winner with passers-by.
Surely though just for variety he could play another London-themed song? "London's Burning" might not be a good choice, but there must be others?