Timba Harris 's composition neXus I : Cascadia ( 2011 ) , for choir and electroacoustic instrumental ensemble , is a " musical representation of the natural environment of the Pacific Northwest with a focus on transitional processes . " The musical narrative focuses on the life cycle of the monarch butterfly , the seasonal behavior of the black bear , and the eruption of Mount Saint Helens . The 45-minute piece is a set of compositions and controlled improvisations informed by data concerning the subject matter and recorded and composed in a back-and-forth process that defined the ultimate musical result . The choral movements were recorded by the 85-member CSULB University Choir under the baton of Dr. Jonathan Talberg
eruption of Mount Saint Helens
1980 eruption of Mount St. Helens
Timba Harris