Trombone Karin Hammer’s Fab4 Set To Release New Album in April February 25, 2023 Jeremy Smith 1177 Views bass trombone, Karin Hammer, Karin Hammer's Fab4, Opening, Trombone Share this:Click to share on Facebook (Opens in new window)Click to share on X (Opens in new window)Click to share on Threads (Opens in new window)