Sedergreen has worked with John Sangster, Don Burrows, and Brian Brown and supported Nat Adderley, Dizzy Gillespie, and Milt Jackson.

He has been advisor to the Montsalvat International Jazz Festival and involved in the introduction of new talent as well as negotiating and supervising the Nat Adderley Quintet and the McCoy Tyner Trio.

As an educator, Bob has lectured at the Victorian College of the Arts and the University of Melbourne's Faculty of Music.

Sedergreen began hourly sets in Melbourne, Australia, in 2007, where he has taken to narration while performing the music of his life, taking time for comments, while still playing in chronological order to entertain the public in a one-man jazz show, called, "Hear Me Talking to Ya" named after a Nat and Cannonball Adderley tune.

[7] It was founded by the Australia Council in honour of Don Banks, Australian composer, performer and the first chair of its music board.