This episode on Critical Karaoke, we’re talking with banjo superstars Béla Fleck and Abigail Washburn on the subject of arrangements—musical, personal, and otherwise. We cover a range of topics with this married musical couple, from collaboration on their self-titled duet album, to ambassadorship and humanitarian work, to raising a child together. In addition to their own recordings, we delve into the music of the Flecktones, Béla Bartok, Doc Watson, and many others. Plus: Special live in-studio recordings of “New South Africa” and “What Are They Doing in Heaven Today?”