Polyfon is a Norwegian booking agency owned by Jon Olav Kringeland. Polyfon is more or less inactive since 2017. Until 2017 Polyfon provided booking and different consulting services for artists mainly connected to jazz and improvised music, but also services connected cultural production and project management. Kringeland’s been working in the music/concert business since 1996 and has worked dedikated with jazz and jazz related music since 2006.