Sir Jack Westrup, (26 July 1904 – 21 April 1975) was an English musicologist, writer, teacher and occasional conductor and composer.
[1] With an Italian expatriate Arundel del Re, he co-founded the Oxford University Opera Club while still an undergraduate, and was later its conductor.
[1] The club had a policy of producing works in English and used its funds to hire professional singers and conductors.
[2] In 1925, with William Henry Harris, he staged the first complete performance in modern times of Claudio Monteverdi's opera L'Orfeo[3] (but only over certain obstacles presented by Sir Hugh Allen[4]), and in 1927 he produced the first British performance of Monteverdi's L'incoronazione di Poppea.
[1] That same year he conducted an edited version of Hector Berlioz's The Trojans with the Oxford University Opera Club,[9] some passages from which were (non-commercially) recorded.
In 1951 he was a co-founder and trustee of Musica Britannica, an authoritative national collection of British music.
[1] From 1963 to 1971 he was joint artistic director of the English Bach Festival with its founder Lina Lalandi.