Hillslope Evolution is an exciting, groovy work for large percussion ensemble that represents the changes of erosion rates that form the slopes of hills and mountains over time. These changes are inevitable and occur at irregular rates, but the slopes are always being altered and morphed into something new. Similarly, this piece depicts the changes that occur irregularly over time. Additional Information: Number of Players: 11 + Piano Level: Medium Advanced Instrumentation: Glockenspiel Vibraphone 1 Vibraphone 2 Marimba 1 [4.3-octave] Marimba 2 [4.3-octave] Marimba 3 [4.5-octave] Marimba 4 [5-octave] Timpani [5 drums] Piano Percussion 1: Hi-Hat, 4 Toms, Snare Drum, China Cymbal Percussion 2: Suspended Cymbal, 3 Woodblocks (or Temple Blocks), Bongos, Vibraslap Percussion 3: Bass Drum, 2 Triangles, Tam-Tam
