'A Musical Offering' is indeed sublime, and thank you for that great review, Scribbly . I think listening to a bit of Bach every day (er, not the entire Musical Offering, thankfully there are plenty of lovely short options) would improve life generally 
Anyway, a couple more from me, which I started reading accidentally at the same time but which are kind-of-linked:
16: A Girl in Winter - Philip Larkin
Book club choice (not mine). Larkin had thoughts of being a novelist at this early stage - 1947 - but the writing is so poetic that his future destiny is clear. Katherine Lind, a 'foreigner' (exact nationality deliberately never specified, but my money's on German) lives in England and works in a provincial library, as the country shivers in the grip of a frozen winter. She is alone, without family or friends, but has contacted the Fennels, with whom she spent a summer several years earlier when the son, Robin - her pen-pal - invited her to stay. She fell in love with him as a 16-year-old and the middle section of this 3-part novel is a flashback to that heightened time. In the final part comes a tense and bleak encounter between Katherine and Robin, both now older and changed by life and events.
This is a curious book, beautifully written but affectless - intentionally, I suppose, as Larkin wanted it to be a study in loneliness and isolation. He wasn't very happy with it, and in later life virtually disowned it.
Which sort-of leads to a complete contrast:
17: An Unsuitable Attachment - Barbara Pym
Larkin was a great champion of, and friend to, Barbara Pym, and helped to get her career back underway after her years in the wilderness following the abrupt rejection of this book by her publishers (at which point she was an established author, so it really was a shocking event for her). Larkin wrote the preface to the edition I read, and made the fair point that it isn't one of her best. Its humour is a bit over-broad; there are too many characters and the storyline (revolving around librarian Ianthe Broome, vicar's wife Sophia Ainger, her perennially-single sister Penelope and various vicars, curates and other walk-ons) is a bit meandering. But, as always, Pym is a joy, even when below par, and there are plenty of lines to treasure. Plus a magnificent cat.