Percussomnia is a long-form electroacoustic exploration of abstract polyrhythms, creating a seamless blend of pitched and percussive sounds, where individual contributions merge into a cohesive musical flow. Originally formed as a duo of prepared piano and percussion, creating intuitive rhythmical flux made out of dozens of percussive and multi-pitched sound events, the format is now extended to a quartet with cello and electronics blending in and expanding the format with textures, sub-bass, and merging drones. Gintė Preisaitė: prepared piano and objects Emily Wittbrodt: cello Rémy Gouffault: digitakt Jan Philipp: drums and percussion.