3ST Designer/Musician John Pobojewski and Percussionist Andrew M. Bliss performed The Metaphysics of Notation by composer Mark Applebaum at Stanford University’s Cantor Arts Center this past Friday.

Applebaum explains the piece as a score of “visual art teeming with evocative glyphs and dense arranged pictographs. The meaning of its visual figures is deliberately left undefined… Each performer is invited to make their own sonic realization of the score.”

Pobojewski and Bliss performed four panels over the course of an hour using different percussion instruments ranging from snare drum to squeeky toy.

Accompaning the duo was an ambient electronic landscape programmed by Pobojewski to respond to the movement of those passing by as detected by a webcam.

This electronic programmed environment also allowed Pobojewski to “play” found sounds, speech, and synth instruments via his iPhone.

All programming was built with Processing, using TouchOSC to connect the phone with the laptop.

Pobojewski and Bliss have performed together since undergraduate days at Northern Illinois University’s Percussion Performance studio.