22, Mansfield Street, London W1.   We will be working on Brahms B major Trio op.8.   There will be 2 days of masterclasses, on 8th and 9th March at the wonderful house of Elizabeth and Bob Boas, just near Oxford Circus.   Other ensembles taking part include the Sacconi Quartet, Belcea Quartet and Finzi Quartet.   Entrance is free, but donations to their charitable trust are welcome.