How can a playlist serve as a core text for transformation? Over the past decade and a half, artist Martin Beck has produced periodic MP3 mixtapes that he shares with a tight-knit community of friends and colleagues. The eclectic musical selection reflects his changing auditory passions and preoccupations. Like long-form conversations, Beck’s mixtapes function as exchanges with a distributed community through the medium of sound. known attained possessed is a paradigmatic playlist from Beck’s loosely-defined genre, enacting musical and rhythmic movement over time. Transformation starts in the body and dance is one of its most powerful agents.