Organ music fit for the crypt and a bit of Halloween hilarity will elevate your spirits — as Seminary of the Southwest music director Kevin McClure and a collection of weird friends collaborate on another “’Twas A Dark and Stormy Night” concert! This Austin tradition materializes Monday, Oct. 24 at 7 p.m. in Christ Chapel, at the corner of Duval Street and Rathervue Place. Austin Ghouls’ Choir, the Three Dead Tenors, sax master Todd Oxford, and Austin Symphony principal trumpeter Bob Cannon make ghastly . . . appearances. Free. Plenty of free parking for brooms and other modes of transportation! Family friendly, great for all ages, costumes welcome!