Melvyn Bragg and his guests discuss Euler's number, e. (R)
BBC Radio 4
4/5 Exploring the impact of Bach's St Matthew Passion on its first audiences in Leipzig.
BBC Radio 3
4/5 Elizabeth is compelled to confront that 'bosom serpent', Mary Queen of Scots.
BBC Radio 4 Extra
Tom English concludes the story of the pioneering Scots who brought golf to America. (R)
BBC Radio Scotland
Dè bh' anns na naidheachdan air a' Ghàidhealtachd bho chionn 100 bliadhna?
BBC Radio Nan Gaidheal
5/5 In the final years of her reign, Elizabeth begins to lose her grip on matters at court.
5/5 Stephen Johnson on the reactions of the first audiences to Stravinsky's The Firebird.
Repeat from last Sunday: Pete Wilson explores the characters making Gloucestershire great.
BBC Radio Gloucestershire
9/20 Am Fisguard II a' dol fodha agus naidheachd dhuilich dha rìribh a' tighinn a Rànais. (R)