Wednesday (1-10) at noon on Curtis Calls we'll hear Curtis students Joshua Halpern, cello & Ying Li, piano in Mendelssohn's Sonata No. 2. Brandon Garbot, Grace Clifford, En-Chi Cheng & Timotheos Petrin play Bartók's 2nd String Quartet. Performances from student recitals at the Curtis Institute of Music, Wednesdays at noon, repeated the folowing Monday evening at 10.