[4] His performance was described by The Argus' reviewer: he "showed brilliance" including his effort on "Liszt's A major concerto (No 2) [which] had an assured technique, but can still go a long way before his powers as an interpreter of his composer are fully used.
[5] Gamley was particularly influenced by Modest Mussorgsky, creating a full orchestral version of his Pictures at an Exhibition, and adapting his Night on Bald Mountain for his score for the horror feature film Asylum (1972).
Gamley composed soundtracks for Amicus Productions, including Asylum (1972), Tales From the Crypt (1972), The Vault of Horror (1973), And Now the Screaming Starts (1973), From Beyond the Grave (1974), Madhouse (1974) and The Land that Time Forgot (1974).
Gamley worked as an accompanist with guest conductor Michael Moores on a recording of the Elston Hall Choir singing Sacred and Secular Music.
[7] Gamley created many arrangements for Joan Sutherland, Richard Bonynge, and Kiri Te Kanawa, both for performing and recordings, such as highlights from Lehar's "The Merry Widow."