One of the foster carers kept a video library of musicals that we worked our way through en famille at weekends, and so, although I fervently wish that I wasn’t, I’m very familiar with the work of Lionel Bart, Rodgers and Hammerstein et al. Knowing I was here on the street where he lived was giving me a funny feeling, fluttery and edgy, verging on euphoric. I could almost understand why that frock-coated buffoon from My Fair Lady had felt the need to bellow about it outside Audrey Hepburn’s window.

