Douglas M. O'Grady

Sculpture in Metal for two-channel digital media (2005)

Excerpt duration: 1:17 (Duration of complete work: 5:13)	Sculpture in Metal utilizes FM synthesis techniques to create a variety of inharmonic metallic-sounding textures. Different amplitude and modulation-index envelopes create a continuum of attack-types for the textures, ranging from "struck" (very fast attack) to "bowed" (slow attack). In addition, several samples of a tam-tam being struck serve as source material for granular synthesis textures in the piece. The pitch structure of Sculpture in Metal is primarily based on the [0126] tetrachord, with various partitions of it coming to the forefront as the piece progresses (for example, { [01], [04] }, { [02], [05] }, etc.)
Performance History April 13, 2006, Georgia College & State University Electronic Music Recital Milledgeville, GA February 8 , 2006, Tennille Family Art Auction Milledgeville, GA September 27, 2005, University of Alabama Electronic Music Recital Tuscaloosa, AL	Sample .orc file of one of the FM instruments sr = 44100 kr = 4410 ksmps = 10 nchnls = 2 instr 1 idur = p3 iamp = p4 ifreq = p5 ipan = p6 kamp oscil iamp, 1/idur, 2 a1 foscil kamp, ifreq, 1, 2.6973, 5, 1 a2 foscil kamp, ifreq.314, 1, 1.3187, 5, 1 a3 foscil kamp2, ifreq2.13, 1, 13, 5, 1 aout = (a1+a2+a3)/3 out aoutipan, aout*(1-ipan) endin
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Sculpture in Metal for two-channel digital media © Copyright 2005 Douglas M. O'Grady All Rights Reserved Registered with ASCAP