Prism, Mirror, Lens

Program Notes
The Shnth is a new instrument that combines a variety of playing surfaces with a programmable sound engine. It is unusually well-suited to just intonation as it uses integer ratios to describe all pitch relationships.

Here, the Shnth is combined with realtime electronic processing implemented with the Csound programming language. The piece explores the harmonic content revealed by manipulating the spectra of long tones and chords tuned to pure intervals. The title is from the first chapter of Samuel R. Delany's novel Dhalgren.

Biographical Sketch
Dave Seidel is a composer/performer based in southern New Hampshire who works with electronics in both live-improvised and composed idioms. His album “~60 Hz” was released in 2014 on the Irritable Hedgehog label. He also has a number of netlabel releases under the name “mysterybear”. His website is

As a guitarist, he participated in the downtown New York music scene in the 1980s, most notably as a member of Scott Johnson’s and Lois V Vierk’s ensembles and in the bands La Guapa Papa and People Falling, performing at venues including CBGB, Danceteria, Mudd Club, The Kitchen, Dance Theater Workshop and Alice Tully Hall. His premiere recordings of Vierk’s “Go Guitars” and “Red Shift” were released on the XI and Tzadik labels, respectively, and he appears on Guy Klucevsek’s album “Flying Vegetables of the Apocalypse”.

His current collaborators include singer Laurie Amat (in the duo Palimpsest) and video artist Gregory Kowalski (for whom he recently provided live sound design for a production of Sarah Kane's play Crave, performed as part of the 2014 New York International Fringe Festival).

Performer Biographical Sketch
See below.