alt-J has been played on NTS in shows including When I'm Walking, featured first on 23 December 2012. Songs played include Dissolve Me, Breezeblocks and 3WW.

Alt-J (sometimes stylised ∆) was formed when Gwil Sainsbury (guitar, bass), Joe Newman (guitar, vocals), Gus Unger-Hamilton (keyboards), and Thom Sonny Green (drums) met at the University of Leeds, Leeds, UK in 2007. The band currently resides in Cambridge.

Unger-Hamilton studied English Literature; the other three Fine Art. In their second year of studies, Newman showed Sainsbury a handful of his own songs inspired by his guitar-playing dad and hallucinogens, and the pair began recording in their dorm rooms…