Dr James P. S. Thomson writes:

IT WAS good to read Kenneth Shenton’s obituary for Graham Matthews (Gazette, 11 October). Graham’s time in retirement as a Brother and the Organist of Charterhouse was, as suggested, no less productive. As Master from 2001 to 2012, I heard him practise the Charterhouse organ daily — the organ had been restored just before his arrival in 2003, and he accompanied weekday evening prayer when requested. He arranged a series of three autumn organ recitals for several years, which attracted, among others, Dame Gillian Weir and the Organists of both St Paul’s and Westminster Cathedrals. Perhaps his most significant success was to form, with Richard Stevens, a four-voice choir known as the Thomas Sutton Singers, named after the founder of Charterhouse, who died in 1611. They were available to sing at special services and accompanied music tours of the Charterhouse in London. He made a significant contribution to the community life which was valued and gratefully appreciated. May he now rest in peace.