The Music Lovers filmed at Temple of Music, West Wycombe. The patron writes letters to the composer while sitting in this temple on a small island in a lake. The temple is a faux-classical folly. On screen it's Brailov estate.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Planning the trip? The United Kingdom travel atlas covers money, language and getting aroundand everything filmed in West Wycombe is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in West Wycombe and it tells you what was shot around you, how to get there, and whether you can actually go in.
Download Venture for iOS Android