Including Benjamin Britten [with a letter to Hedli Anderson (1974)], arrangers or copyists Walter Bergmann, Frank Collinson, Hanns Eisler, Norman Franklin, Michael Jessett, Herbert Murrill, Michael C. Pilkington, and Ferdinand Rauter.

With copy arrangement in 8 parts (2 violins, cello, bass, flute, oboe, clarinet in B flat, 2 trumpets, trombone); published score, G.W. Hunt, One night I went up in a balloon, London (Hopwood and Crew), [1868], lacking front cover and part of last page; score, voice only, `Up in a balloon', adapted by H.B. Farnie (`I am as you know a Madison belle'), copied by Hedli Anderson, with additional copy of words only.

MS music compositions, sketches, 'functional analyses'; also a composition by Judith Bingham (1981), first proof opers vocal score of Benjamin Britten's 'The turn of the screw', amended by [Britten], [Imogen Holst] and [Keller] (c.1955); vocal score of Britten's 'War Requiem', pre-publication dye-line, not published in this form, with amendments possibly by Britten (1961); André Chaikowsky, 'Trio notturno for violin, violoncello and piano', MS score (1978).

These are: Christian Barman, Charles Batey, Mrs. Bedaux, Leonard Beaumont, Jack Beddington, Jack Bickel, Rae Biemiller, Billy Birkett, Michael Birkett, Norman Birkett, Basil Blackwell, Douglas Percy Bliss, Christopher Bradshaw, C. E. Brendon, British Soviet Friendship Society (Colin Williams), Benjamin Britten, Dora Brody, Lady Brook, Anthony E. Brooks, I. W. Burch, Philip A. Burgoyne, and C. W. Byford.