DJ Grandpa helped spark a new licensing system for street performance after infuriating passers-by with his repetitive mobile disco

• WILL Coles complains about a busker’s meagre repertoire, he is not happy to hear the same song over and over again, (Cherish our music heritage, don’t murder it, July 20). But it’s exactly the same on the radio. I hear the same song over and over.

Christmas carolling is a form of busking and the carols are always the same. They have been the same for 150 years! Whatever buskers are singing they are not doing any harm. Be tolerant.

CHRISTINE MOULIE, NW6