This work was commissioned by Dr. Robert Oertli from Möhlin, Switzerland, and is based on an earlier composition called Spirit of the Sequoia. The piece is inspired by how the human spirit can gain from setbacks: we become stronger after adversity. Sparke used the Californian redwood tree as a metaphor for this basic idea. The remarkable life cycle of these amazing trees involves them dropping seeds to the ground, which require heat to open their shells and germinate; the seeds require de...