Playing the Numbers:

Crystal Castles' third album, (III), was recorded using a methodology that might seem unusual for an act often linked to EDM. The Toronto duo, producer Ethan Kath and vocalist Alice Glass, decamped to Warsaw, where they laid down tracks in one take using a '50s tape machine.

"We had an idea that we would communicate with no one," Kath says of the computer-free process. "We would be completely isolated. We moved to Warsaw because we didn't speak the language. We didn't know anyone."