Violinist James Ehnes on his half century

Tom Service with guests, stories and the perfect classical soundtrack for the weekend!

Tom talks to the brilliant multi-award-winning Canadian violinist James Ehnes, who is in the middle of a world tour to celebrate his 50th birthday - James talks to Tom about why he's still as in love with music as ever and why live performance is the key for everyone's wellbeing.

Over the last few weeks in our ongoing focus on 'Creators', we've been looking at huge works for orchestra, electronics or singers - today, though, we go tiny and unpick the particular earwormmy power of the 4 note SNCF jingle that's heard in railway stations all over France.