About
The piece begins quietly, then gradually grows through fast, turbulent music to a large "crunch", dissipating slowly, leaving only cellos and basses. A quieter section follows: several instrumental solos build up the texture (notably alto flute, bass clarinet and marimba). The work concludes by re-using the longer melodies, but now underneath the loud and dense texture. The images of a rushing river flow through the piece, from the delicate opening music to the violent rolling and tumbling of the fast section. The calm quiet waters of the instrumental solos give way to the final climax.