HANS BILGER is a Berlin-based musician, sound engineer, and bioacoustician.

He is currently the composer-in-residence at Cora Dance (USA) and has released original albums of songs and compositions on Good Child Music (Meridian, 2019) and Adhyâropa Records (Orchids, 2025, with Eli Greenhoe). A trained double bassist and omnivorous improviser (he studied with members of the Staatskapelle Berlin and collaborators of Ornette Coleman), he has performed across Europe and the USA with bluegrass bands, jazz groups, Syrian takht ensembles, songwriters, and indie rock bands.

As a recording engineer and producer, Bilger has worked across a wide range of genres and contexts — from symphony orchestras to modernist duos, traditional Romanian song to electroacoustic flute pieces. He has worked on production teams for recordings on ECM Records and his engineering work has been featured on Apple Music's Best New Songs. His studio, Two Fields Sound, is based in Berlin's historic Funkhaus. He has taught courses on recording and artist development at Bard College Berlin and Universität der Künste. He is currently a staff sound engineer at Berlin’s historic A-Trane jazz club.

Bilger also has a deep background in the science of sound. He holds a doctorate in evolutionary bioacoustics from the University of Texas at Austin and has published research on the musicality of birdsong and the evolution of the voice in frogs, bats, and humans in journals such as Frontiers in Psychology and Bioacoustics. Currently, these interests are feeding a new project: We Beasties, a children's literature and music radio play exploring the perceptual worlds of different animals.