Popular acceptance of the mp3 digital music standard has greatly increased the complexity of organizing and playing large music collections. Existing digital music systems do not adequately support exploration of a collection, nor do they cater to multi-user interaction in a social setting. In this paper, we present the design of a ubiquitous system that utilizes spatial visualization to support exploration and social interaction with a large music collection. We implemented a prototype as a

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... of of concept of our design. Initial user testing demonstrates that our system encourages participation and strengthens social cohesion. Our work contributes to interactive interface research in that it extends the utility of map-based visualization of digital music.