As part of the Red Bull Music Academy Festival, Björk graced the Tri Angle Records's five-year anniversary party with a secret set. She showed up unannounced and in a sequined mask, apparently unrecognizable at first to most of the crowd. It was a small crowd in a packed room, and Björk was there to take them all on an other-worldy journey through a female vocal driven set that features music from an impressive set of genres.

Björk was sure to include many tracks from Tri Angle Records artists like Rabit and Lotic, but she mingles these sounds with the likes of Chilean flutes and Sufi singers. There is an ever-present noise techno feeling throughout, machine-like clicks and whirs accentuate the more subtle aspects of the set. Ultimately, the it stands as an exploration of the intermingling of subsets of music that almost never meet, and Björk proves that a masterful understanding and interpretation of music and music production leaves room for the blending of seriously unlikely sounds in satisfying ways.