Learn to Play the Ukulele in Under an Hour

'The ukulele is the cure for depression', claim Sam and Donal, your specialist historians and ukulele instructors for the day. With a Dave Gorman-style slideshow of whimsical adventure, it's the audience members that create the soundtrack with provided instruments. Sometimes this newly formed band's enthusiasm detracts from the onstage nonsense, but at least it suggests that Sam and Donal might just be right.

Gilded Balloon Teviot, 668 1633, until 25 Aug, 5.45pm, £9–£10 (£8–£9).