Peter Gammond's first introduction to opera came when he bought a small 7" disc with a red label in Woolworth's in 1930. It was entitled 'Ding-dong-ding-dong-ding-dong' from an operetta called Les Cloches de Corneville. He never really managed to overcome its effects and has continued to have bad taste. Author of several well-illustrated books on opera which sell because of the pictures, and a number of serious works on music, both classical and popular - some 40 books in all - he is still slightly taken aback, when being introduced, by the instant enquiry 'Not the Gammond who wrote the Bluffer's Guide to Music?' He will never admit that he is.