Either/Or - Music of Nic Collins // Roulette

From Roulette's website:

In his first New York concert in four years Nicolas Collins presents a mix of recent works for ensemble and solo electronics. In Roomtone Variations the resonant frequencies of the Roulette concert hall are mapped, in real time, through controlled acoustic feedback, and projected as staff notation. Once the staves are filled the musicians in Either/Or improvise variations on the notes, gradually stepping through this site-specific “architectural tone row”. The computer-generated notation in Bracken guides the ensemble through interactions inspired by Christian Wolff’s “coordination” scores of the 1960s, extended by adapting techniques of electronic music onto acoustic instruments. In Speak Memory data files of pictures are encoded in sound, played back through speakers, momentarily stored in the reverberation time of the hall, but “forgotten” as the sound decays; the process is recorded, then reviewed in slow motion, revealing the erosion of sound and image. Circuits and software round out an evening of adventurous electro-acoustic music.