Field Line Collective is an experimental ambient and through-composed music project based in Oklahoma City, founded by Michael Trepagnier and Brandon Birdwell. The music is slow, textural, and tonal, built from layered instruments and patient, evolving forms. Both members move between many instruments, including bass, guitar, and modular and sampled electronics. Live, the duo performs with hand-built and modified instruments, computerless Ableton Push 3's and Eurorack setup, and synced devices that let the pieces develop in real time. The project extends beyond the music. Field Line runs a small label and Etsy shop selling hand-built cassette loops made from upcycled shells and fresh tape. It is developing a generative web audio player that lets listeners explore its sounds as a network of interacting nodes. Recording happens at Cardinal Song, Trepagnier’s studio in Oklahoma City. Field Line is working toward an artist residency and other ways to support the long-term health of ambient and experimental musicians, in the spirit of the communities that nurtured the work.