The complete listings of Vincent Persichetti's works include several compositions that were withdrawn and have remained "known secrets." Not mentioned anywhere however, is this brief gem, a family heirloom revealed by the composer's daughter in 2015. Lauren Persichetti has written: "My father used to play Frog Dance for me to dance to when I was a little girl. He also played it to warm up before practicing for four-hand concerts with my mother. As I got older, I asked him to write it down, but h...