Altered Gates by Jim Casella is a quintet for unpitched percussion instruments. It features a large array of concert and marching drums and auxiliary percussion instruments. The piece is set up in such a way that the performers face inward towards each other, adding a compelling element of spectacle and choreography to the piece. With nuanced cooperation, ten hands interweave to create multiple rhythmic layers, split melodies, and an energetic, groove-based current of perpetual motion. Altere...