Airs Thursday, January 19 at 8:00 p.m. When the discussion of contemporary American acoustic music arises, several different genres come to mind. If the ingredients of the genre include well-crafted songs, vivid arrangements, instrumental virtuosity, splendid improvisation, complete vocal harmony, as well as a mandolin, a banjo, and a dobro, well, the window gets narrowed down. One group that embodies all of these traits is The Infamous Stringdusters.