The Paul Keller Orchestra is one of Michigan's finest, oldest, most-respected and well-traveled jazz big bands. The PKO has held forth every Monday night, for over twenty nine years, in Ann Arbor, Michigan, first at the Bird of Paradise Jazz Club (13 years), then at the Firefly Club on Ashley Street (6 years), then at the New Firefly Club on Main Street (2 years), then at The Keystone Martini Bar (1 year) in Ypsilanti AND NOW at their MONDAY NIGHT HOME at the Zal Gaz Grotto located at 2070 W. Stadium Boulevard on the west side of Ann Arbor. Since its inception in 1989 by string bassist, composer and arranger Paul Keller, the PKO has maintained the highest standards of musical excellence and has enjoyed providing top-quality jazz and entertainment to their loyal fan base. The PKO's voluminous library of over 1,000 arrangements includes classic, obscure and original big band material from the entire history of jazz.