Michigan-based, Pleasantly Aggressive Folk Duo Nervous but Excited (Kate Peterson & Sarah Cleaver) is two songwriters, two singers, two guitars, a mandolin, a violin, a few harmonicas, a barrel of harmony, some vaguely choreographed dancing and a lot of laughter. Their original repertoire ranges in topic from smart, introspective narratives to the tactfully political… and they still dabble a bit in the love/post-love variety every now and then.