Handwritten and typescript letters from Anne Macnaghten and the Macnaghten New Music Group, including correspondence from Ernest Chapman (Secretary).
Includes asking Britten to perform in concerts to promote the Macnaghten Concerts group and a performance for Vaughan Williams' 85th birthday, of which he declines. Also includes electing a council chairman and the AGM minutes from 1968 and AGM agenda for 1969 and 1970.
Letters from Britten include his donation of the manuscript for A boy was born to the Macnaghten Concerts group in 1975, as well as updates on his concerts with Peter Pears and apologising for missing commitments due to his schedule. This includes copies of Britten's handwritten letters to Anne Macnaghten from the 1930s and onwards.