This Thursday at 7:30 p.m., Wealthy Theatre's Centennial Sustainability Campaign gets a boost from a benefit concert headlined by a notable cadre of the region's jazz/rock fusion innovators. Organ-based trio organissimo headlines the show, opened by Grand Rapids jam band Glean Infusion, with Emmy Award-winning producer Glenn Brown's eponymous Glenn Brown & Intergalactic Spiral adding its eclectic blend of rock influences to the mix.

Called by the Chicago Tribune "one of the most promising organ trios in jazz," organissimo's boundary-stretching take on the traditional organ combo is reflected in its diverse audience, which it describes as "... a healthy mix of people from all walks of life; young and old, black and white, from hippies to corporate professionals and everything in between." Intergalactic Spiral & "EXP", the latest incarnation of Brown's live band experiments, offers this bio: "Started as ancient musicians from Atlantis. Had to leave due to alien invasion of the Earth after primitive instrumental battling." Progressive jam band Glean Infusion lists its influences as " The Earth, Water, Vibrations in the Air, and the Ebb and Flow of Existence."

All proceeds from the benefit go to fund Wealthy Theatre's Sustainability Plan, with a minimum suggested donation of $12 good for a ticket into the show. Donations made this week to the theatre's greening efforts will be matched by the Steelcase Foundation. A cash bar featuring local brews from Founders, Bells, And Brewery Vivant will be available. Doors open at 6:30 p.m., with the bands expected to offer more than four hours of musical exploration into cosmic soundscapes.