String Quartet (1995) by James Humberstone

String Quartet (1995) by James Humberstone has four slowly phasing parts. The cello part repeats twice, while the viola part repeats seven times, and the first and second violins three and five times. Over its duration the parts phase out and then back together, but the work was carefully conceived so that every moment is entirely deliberate. This performance (2011) by Doretta Balkizas (vln 1), Jonathan Hendl (van 2), Nicole Forsyth (vla) and Eleanor Betts (cel).
"String Quartet" by JamesHumbers is licensed under a http://creativecommons.org/licenses/by/3.0/ Creative Commons License and is freely and legally available at http://soundcloud.com/aftertrace/string-quartet

Picture by By Jean-Pol GRANDMONT (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0), GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons at http://commons.wikimedia.org/wiki/File%3AFagus_sylvatica_JPG2a.jpg