One hit wonder.

I'd just finished my busking session when I thought the one black tuning key, amongst the other chrome ones, would strike the right note for today's challenge.
The local shopkeepers are very supportive of my playing, and often club together. They'll give me £10, but have very narrow tastes when I ask them if they have any song requests. They only ever want “Go Now" or "Down the Road".

Many thanks to random_angel for hosting.