Much more than simply a show promoter, Chris Davis has been our city’s resident curator of outside-the-box performances, bringing an eclectic cross section of the international musical vanguard to an equally diverse array of off-the-beaten-path venues. This summer he’s been on a roll, beginning with the city’s introduction to Tuareg guitar phenomenon Bombino at VFW Post 1970, and most recently with Ralph White and Joshua Burkett’s atypical psychedelia last weekend at the enigmatic Charlotte dive Betty’s Bar and Grill. The streak continues with a rare performance at the chapel of the historic Downtown Presbyterian Church, where legendary British improvisational saxophonist Trevor Watts and the geometrically inspired pianist Veryan Weston will display the fruits of their more than 30 years of artistic partnership. Splitting the bill is an improvisational string-and-drum pairing respectively featuring William Tyler and Tim Barnes — whose performance history, along with Watts and Weston, invokes a generation’s worth of forward-thinking collaboration with artists as diverse as Sonic Youth, the sadly departed Lol Coxhill, Archie Shepp, Tony Conrad and Silver Jews. It will undoubtedly be a very special evening, and a welcome diversion from the Friday night ritual of smoky bars and punk-fueled basement gigs.