Bent, Margaret. 1993. Pycard's double canon: evidence of revision? Sundry sorts of music books. Essays on The British Library Collections. Presented to O.W. Neighbour on his 70th birthday, edited by Margaret Bent, 10-26. London: The British Library.

Fallows, David. 1993. Henry VIII as a Composer. Sundry Sorts of Music Books: Essays on the British Library Collections Presented to O. W. Neighbour on his 70th Birthday, edited by David Fallows, 27-39. London.

Milsom, John. 1993. The Nonsuch Music Library. Sundry Sorts of Music Books: Essays on the British Library Collections Presented to O. W. Neighbour on his 70th Birthday, edited by John Milsom, 146-82. London.