Chris Heidman knows electronic music. Jeff Lorentzen knows R&B/hip hop flavor. Together they make UltraChorus, a digitized electro-pop frenzy that rivals the likes of Gnarls Barkley or Hot Chip. Because of the nonconforming and experimental irregularities that their debut album Ultra-Def has against modern R&B, there is an indifference in what this Minneapolis based duo should be labeled. All that’s really important to understand is that these cats have soul and can write one hell of a love song. Whatever category their qualities are …