Claire Martin sings 20th-century jazz at Hampstead Jazz Club. Photo: Hreinn Gudlaugsson

Experience an immersive, unsettling journey through night-time waltzes at an Aurora Orchestra “lock-in” at Kings Place late on Saturday evening (April 7). Playing is Aurora’s principal pianist John Reid with illustrative support from Will Lindley. Kings Place, 90 York Way, N1, 9.15pm, £5 online, 020 7520 1490, www.kingsplace.co.uk

• Songs and opera arias are being performed at a Keats Grove Library fundraiser being held at Rosslyn Hill Chapel next Thursday evening (April 12). Singing are soprano Jacquelyn Stucker and tenor Konu Kim, young singers on the Royal Opera House Jette Parker Young Artists Prog­ramme. Pianist David Gowland accompanies.
Rosslyn Hill Chapel, Hampstead, 7.30pm, £10, 020 7431 1266, www.wegottickets.com/event/431569

• Award winning jazz singer Claire Martin is paying hom­age to some of the 20th century’s greatest jazz singers at the Hamp­stead Jazz Club next Thurs­day evening (April 12). Sing­ers being celebrated in­clude Ella Fitz­gerald, Billie Holiday, Peggy Lee – and the classic songs that made them stars include That Old Black Magic, Fever, Too Darn Hot and many more. Hampstead Jazz Club, 23-25 New End, Hampstead, NW3 1JD, 8pm, £20, 07548 749817, https://clairemartinjazz.co.uk/live-dates/