Two Sundays ago, I attended a performance at Artist Television Access featuring electro-acoustic audio-visual improvisations with John Butcher, Bill Hsu and Gino Robair. Bill Hsu provided the visual elements of the performance using the visualization environment Processing. (I have been interested in Processing for a while, and used it in the abstract graphics in my video piece featuring Luna.) Gino Robair had an array of electronic devices, including a Blippo Box and an Alesis effects unit, and acoustic percussion for a variety of sounds. John Butcher provided the low-tech counterpoint on saxophone.

I arrived late to an already pitch-black room as the first piece was concluding. (I was late because I was looking for a parking spot, which in the Mission is usually an ordeal. and I rarely drive there, but I had to on this night because of other obligations.) The next piece began in darkness, with small colored dots and a very sparse musical texture. The sound primarily consisted of electronic drones and long saxophone tones. As the the dots began to expand, so did the music. It became more active and featured more percussive sounds from Robair. As the graphics grew more complex, with swells and streaks, the music veered from discrete sounds to outright skronking with long runs of fast notes from both performers.

The next piece featured graphics that reminded me a bit of finite-element simulations with large numbers of particles forming in and out of patters. At first the particles seemed to form glyphs or characters of a written language, but then dissolved into smoke. This was set against sparse music, featuring bowed metal. (It was too dark to see, but I am pretty sure this was Gino Robair’s signature cracked cymbal.) The graphics shifted gradually over time, sometimes it seemed more like water, sometimes more like sand. Towards the end, the music (both saxophones and percussion) moved towards rather piercing high tones.

After a brief intermission, the performance resumed with the now familiar sound of the Blippo Box. It is interesting how despite having chaotic processes, this instrument has a very distinctive set of timbres and contours that are quickly recognizable. I did find out after the performance that the Blippo Box was being used in conjunction with an Alesis effects unit, which added more dimensions to the sound without changing its inherent character. Butcher attempted to match the sound on his saxophone, coming into unisons on the steady-state pitches, but then moving in chaotic runs of fast notes are growling timbres during the more turbulent output from synthesizer. The graphics during this piece focused on two closed elements, one yellow and one purple. They were mostly round shapes that curved in on themselves, but they occasionally coalesced into representational objects, such as a complex cross shape with sub-bars on the end (a bit like an Eastern Orthodox crucifix), and vague outlines of human figures.

The next piece was a sharp contrast musically, with drum samples and live percussion set against percussive saxophone effects, such as key clicks and tonguing. The graphics featured a red star with a roiling plasma surface that expanded over time.

The graphics in the final piece connected most strongly with my own visual aesthetics. It featured patterns of vertical bars overlaid periodically with large dots. The patterns started out simple, focusing on just a few elements on colors, but got more complex and richly colored over time. The music set against these visuals again featured the Blippo Box and its constantly changing but distinctive sound palette. But rather than attempting to match it, Butcher’s saxophone provided a counterpoint. He wove together active lines and melodies that on occasion were distinctively jazz-like, and then moving back and forth between long runs and series of loud inharmonic tones.