That's Klezmer for 1-2 Clarinets (or Violins) and Piano by Peter Prystaniak and Irith Gabriely. Henry Litolff's Verlag/C.F. Peters, 2008, SS, 29 + 18 pages, with play along CD. This book includes seven traditional pieces and five new compositions. The first eight can be played as duets, with or without the piano. The CD includes both "listening" and play-along tracks for all the pieces. The clarinet parts are high school level. (C1310)