With their ensemble river, electric bassist Nina Feldgrill and saxophonist Robert Unterköfler present a quartet that has established itself as a fixture in the Austrian jazz scene. Together with Erik Asatrian on keys and Simon Springer on drums, the four musicians perform original compositions written by all members of the band. Stylistically rooted in modern jazz, river opens up space for the individual artistic voices of its members. The result is a multi-layered sonic landscape that spans virtuoso, high-energy outbursts to delicate, ballad-like moments, guaranteeing an exciting and richly textured listening experience. The quartet released its debut album Chameleon Circuit in 2024 on the international jazz label SkyDeck Music, followed in 2026 by an EP created in a special collaboration with jazz great Alex Sipiagin. The 2025 Austrian Jazz Award–nominated album Nina Feldgrill, on which river played a major role, further underscores the ensemble’s artistic presence.

Nina Feldgrill: e-bass

Robert Unterköfler: saxophone

Erik Asatrian: keys

Simon Springer: drums