(1). ff. 1-18. Photocopies of Boulez’s original manuscript of ‘Notations’ for piano, annotated by Susan Bradshaw. (2). ff. 19-30. Arvo Pärt: ‘Aliinale’, for piano (1976). Autograph. With a photocopy of ‘Mirror in a mirror’, for violin and piano. (3). ff. 31-59. Copies of music by Boulez and o...