The Louisville singer-songwriter Cheyenne Marie Mize has performed with Will Oldham, and now she’s establishing a solo career of her own. Her introspective 2010 debut, Before Lately, had an intriguing mix of styles, and her adventurousness continues on the new EP, We Don’t Need. When Mize performed Wednesday (Jan. 25) at Schubas, she started off her set with the song that opens the EP, “Wishing Well,” which features little more than her singing and chanting to a drum beat. Throughout the rest of her set, she switched between guitar, keyboards and violin, while two other musicians (a drummer and a multi-instrumentalist) provide subtle backing but kept the songs sounding spare and direct.