Cagey's listening to

'Sleep', Cause and Effect, Artificial Construct Part One, 2010
http://www.causeandeffect.com/

Cause and Effect on the album's iconography:
Cause and Effect ‎"@David - The squares represent the elements of a song with the red one being voice and the others being instruments. The four lines represent the 4 songs on the EP and their different lengths."