Soul ORGANization Organ Quartet performs funky/bluesy Soul Jazz from legendary Hammond organ masters Jack McDuff, Jimmy Smith, Jimmy McGriff, Dr. Lonnie Smith, Reuben Wilson, Brian Auger, and Booker T. Jones, as well as music from other greats of Soul Jazz including Lou Donaldson and George Benson.

The lineup, first formed in Tucson in 2024 , includes Doc Holladay (ORGANic Funk Alliance, the Coolers) on organ, Ralph Gilmore (Bryan Dean Trio, the Van Dykes) on drums, and Clay Brown (the Amosphere) on sax.