Horn Ensemble Horn - Level 2 - Digital Download SKU: A0.1418964 Composed by Austin Whisler. 21st Century,Chamber,Instructional. 10 pages. AWhislerMusic #989860. Published by AWhislerMusic (A0.1418964). Shifting Leaves captures my experience growing up, watching the reversed cycle of the Japanese Maple tree outside my dining room window. Growing empty leaves in the spring, the tree wouldn’t fill its cells until it decided it was time. This created a wonderful feeling of anticipation, as I never knew when the first shades of green would appear. This piece explores that feeling of anticipation and the relief when spring finally did roll around, the tree shaking itself awake for the warm seasons ahead.