An Evening of Robot Music

On Sunday, March 28 I attended "An Evening ofexperienced "computer music" that I could see and
Robot Music" at The Bridge Progressive Arts Initiativetouch. The robotic musicians created a definite
in Charlottesville, Virginia, which was a performancethree-dimensional sound not solely through the use of
by the group Expressive Machines Musicalspeakers, but through their arrangement and spacing
Instruments (EMMI). EMMI was founded in 2007 byon the stage. The robots gave the music some extra
Troy Rogers, Scott Barton, and Steven Kemper inpersonality that you don't normally get with computer
2007. The group creates robotic instruments andmusic.
composes music for them to play. This performanceEMMI played some of their own compositions as well
featured the Poly-tangent Automaticas remakes of other work. One of the remakes was
(multi-)Monochord (PAM), the Multi-mallet Automatica European folk song that featured MADI. This piece
Drumming Instrument (MADI), and several newwas relatively simple, but it was awesome. I
instruments.especially liked the idea of using very precise,
PAM is a string instrument, with pitch controlled byprogrammable machines to emulate human
multiple "fingers". MADI uses 15 programmable strikingperformance. The robots didn't get to have all the
arms to play a snare drum. There are several typesfun however: there was some collaboration between
of arms, which allow for a greater variety of sounds.a human guitarist and PAM for one song. It was
Supporting these two main instruments was a ganginteresting to hear the simultaneous playing of a
of smaller, modular instruments. Each of theseguitar with the programmable, quantized notes of
modular instruments consisted of a solenoid-drivenPAM. One of the other pieces used a background of
arm that would strike or move some object placed inpre-created electronic tones to supplement the
front of it. One such instrument was made to shakerobots.
a tambourine and another rattled off of a candlestick.The performance lasted an hour and was very
The performance also contained a contraption thatenjoyable. I have never seen anything quite like this
shook a box of marbles with a hole in it, allowingin person and it was really cool. This performance
some of the marbles to fall and hit a metal pan thatwas very creative and dynamic. There were 5 or 6
had a contact microphone attached to it. This wasdifferent songs and each one was very different
particularly interesting, as it added an element offrom the next. The thing I liked the most was the
randomness to the show.versatility of the modular instruments. They can be
One of the goals of EMMI is to "bring physicality backplaced almost anywhere and be made to play almost
to computer music" and move away from the "blackanything. Overall, It was very exciting to see a
box" that most computer music has become. Irobotic "band" right in front of you, completely in
certainly felt like this was accomplished throughoutsync. I thought the show was well worth the time.
the performance. Right from the opening piece I