SOUNDFor Public SculptureSound, artist Narcelio Grud installed these instruments for tapping, beating and otherwise ambient-music-emitting by regular folks walking ’round the city. The strategically aimed DIY speakers get them jamming to each other from different corners of the intersection.

Highlight of the video: That special little WTF-to-I-think-I’ll-tap-that glimmer in the eye of each participating passerby. Relational aesthetics cred?