Clean Bandit's Grace Chatto and Jack Patterson's latest foray into self-direction is a story of heartbreak, intercut with a performance of the band in full orchestra mode - with guest vocalist Zara Larsson centre-stage. And it packs a real emotional punch.

The story in itself is tragic - a man coming to terms with the loss of his partner in a cycling accident. It really touches a nerve, but then Chatto and Patterson bring it up a notch by drawing the story into the performance of Symphony.