Grime artist Stormzy became a worldwide sensation when online videos of him and his friends in the park went viral. With the release of his first studio album Gang Signs & Prayer and a national tour, he talks about his range of different styles, trying to please his mum and the police kicking down his door.

Poland's greatest living composer, Krzysztof Penderecki, whose powerfully dissonant music has been used in films such as Kubrick's The Shining, reveals that his terrible experience of Nazi occupation inspired his masterpiece St Luke Passion.

Ash to Art is the response of 25 artists to the fire that destroyed a significant part of the Glasgow School of Art in 2014. Each was given a piece of charcoal from the burned-out Mackintosh Library and asked to make a work that could be auctioned to raise money for the building's restoration. Cornelia Parker, Chantal Joffe and Ishbel Myerscough show John round the exhibition at Christie's in London.

Presenter John Wilson