Jacob Fred Jazz Odyssey is a jazz band from Tulsa, Oklahoma, USA. JFJO is an improvisational quartet featuring Brian Haas on piano and keyboards, Josh Raymer on drums, Chris Combs on lap steel and Jeff Harshbarger on upright bass. They originally formed in Tulsa, Oklahoma in 1994 as an octet. The only remaining original member is Haas. Haas and Reed Mathis, the group's bassist for over a decade, formed a trio with Matthew Edwards in early 2000.