From the pingbacks, a post about 3D Soundclash:

In February 2010, the Red Bull Music Academy prompted Warp Records and Ninja Tune for a Soundclash on a 3D sound system, staged in the Loading Bay of the Royal Albert Hall. FIELD developed a generative real-time application especially for this event, which motion designers Quayola and Thomas Traum used to design and perform soundreactive visuals for the sets of Plaid, Clark, Mira Calix and many more.

Further down in the article it mentions that the application was built with Processing and uses Minim for the “sound interaction”.