2012 album from the hotly tipped UK outfit, who have a totally unique musical vision.  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.