I was delighted to read the news that a letter written by the composer Sir Michael Tippett while in prison has just been sold to the British Library (Report, 8 July). As his closest friend and artistic associate, I very much hope this will lead to a revival of interest in his music, especially by a new generation of musicians.
In the last few decades of his life, Tippett achieved worldwide recognition, winning honours from several universities, not just in the UK but all over the world, and every royal honour right up to the Order of Merit. Also, before Vladimir Putin came to power, Sir Simon Rattle introduced Tippett’s music to Russia.