How can you fill a whole page about Swindon: the Opera (Report, 7 July) without mentioning the composer's name: Betty Roe? Without her it wouldn't have been an opera! The handbill describes it as "A musical journey through Swindon's history", and her name comes before that of librettist Matt Fox. Roe will be known to many as a pianist and performer of songs (both serious and cabaret), church anthems and services, and as an adjudicator and an examiner. I was proud to sing under her baton at St Helen's in west London, and as a member of The Cunningham Singers. Now in her early 80s, she continues a joyful musical life, putting many of her younger friends to shame.Geoff WarrenBodenham, Herefordshire
• I know that Betty Roe comes from Ladbroke Grove, not Swindon, but that is no reason to leave out a composer who knocks out musicians half her age. Three cheers for Betty!Murray MarshallWest Grimstead, West Sussex
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