alt-J (∆)’s name takes a little explaining. Pronounced “alt-J”, the delta sign is created when you hold down the alt key on your computer keyboard and punch ‘J’ on a Mac computer. The symbol has a deeper meaning for the band, as guitarist/bassist Gwil Sainsbury notes, “in mathematical equations it’s used to show change,” and the band’s relatively new name came at a turning point in their lives. Gwil, Joe Newman [guitar/vocals], Gus Unger-Hamilton [keyboards] and Thom Green [drums] met at Leeds University in 2007. Gus studied English Literature; the other three Fine Art.