This Brooklyn-based songwriter has managed to stay pretty much under the radar — no fancy loft shows, blog-love for him not yet ubiquitous — but here we are, doing our part to change all that. Stith is a potentially major talent with a minimalist's knack for piano-and-guitar-based pop songs that are as interesting as they are simple, and as elegant as they are childlike. Tonight, he'll be playing a mixture of originals and holiday standards.