Ted Newsom wrote:
I'm pretty sure Hollingsworth arranged the scores as well as conducting them for Hammer-- so if there were extra-heavy tympani or a rat-a-tat-tatting snare drum, that would be his doing as much as the composer.
Ted, I wish I knew the answer to that. Not wishing to discredit James Bernard (he had nothing but praise for him) Hollingsworth was such a talented director/conductor and, along with Ken Cameron's team at Anvil, brought the very best out of every Hammer composer that was hired by him and this may have included orchestrating and arranging.
Anvil Films at Beaconsfield Studios was only a small stage but Cameron and his engineers, the orchestra, which were all players that had worked with Hollingsworth various ballet, classic and opera performances in London, Covent Garden etc. This why, in my opinion, the sound and performance of the music in the early Hammer films is so dramatic and superior to the later films.
Except for the odd one or two titles from the early classic films, ("Curse of the Werewolf", I believe, was conducted by Composer Benjamin Frankel and "The Gorgon" Marcus Dods) he conducted all of them. Hollingsworth was preparing 'Evil of Frankenstein" when he died.

A rare article on John Hollingsworth from the UK publication Music & Musicians:

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