'Alt-J' comes from the key sequence used to generate the symbol Δ on an Apple Mac computer: Alt+ J.
The band often makes references to triangles (for example, the song Tesselate mentions 'triangles are my favourite shape', and they make triangle symbols with their fingers during concerts ), which they say is just due to it being a visually appealing shape. The band's actual name is the triangle-shaped symbol Δ (the capital Greek letter delta).
2.2 2011–12: An Awesome Wave and touring.
