Offbeat Picks of the Week: Underrated saxophonist...

Offbeat Picks of the Week: Underrated saxophonist Gary Foster leads a virtual all-star ensemble (pianist Larry Koonse, bassist Darek Oles and drummer Joe LaBarbera) tonight and Saturday at Club Brasserie in the Bel Age Hotel, (310) 358-7776. . . . One of Kansas City’s favorite jazz singers, Karrin Allyson, performs a much-anticipated one-nighter at Catalina Bar & Grill on Monday, (213) 466-2210. . . . On Tuesday, guitarists Barry Zweig and John Pisano, who have been musical buddies for decades, bring their subtle, interactive jazz lines to Papashon in Encino, (818) 783-6664.