This piece, for 2 glockenspiels, was written for Duo Vertigo,
which is the wonderful percussionists Claire Edwardes and Niels
Meliefste. They have a CD which
features this piece,
so I'm only giving a fragment.
This is from my original program note:
Two Glockenspiele play similar lines in different tempi and cause the
material to echo back and forth between the two of them. Each section
uses a different selection of materials, interlocking them in generally
simple, repetitive ways and causing diverse interferences (harmonic and
contrapuntal relations) between the two voices. The result is a dense
web of illusory voice leadings, types of motion and harmonic
shadings. The sequences are interrupted by pauses and crumbs of solo
writing.