Kirsty Young's castaway this week is the veteran jazz musician and radio presenter Humphrey Lyttelton. To Radio 4 listeners, he's best known as Chairman Humph who has spent more than 30 years picking his bewildered way through the innuendo and mayhem of I'm Sorry I Haven't a Clue.

But his first love is jazz - as a child, he was always fascinated by music and when he was a teenager it was Louis Armstrong who inspired him to take up the trumpet. Fittingly, Armstrong went on to hail Humph as 'Britain's top trumpetman'. Now aged 85, Humph is still recording and touring with his band and says that he finds he's kept awake at night by new ideas for music they can play together.

[Taken from the original programme material for this archive edition of Desert Island Discs]

Favourite track: That's My Home by Louis Armstrong