Celebrating 20 years of chamber music gems, The Orion Ensemble, Chicago’s nationally recognized and critically acclaimed chamber music ensemble, presents a season of concerts that traces its history, welcomes respected guest musicians and concludes with a world premiere commission. For Women’s History Month, the women of Orion welcome guest soprano Patrice Michaels for “A Voice from Heaven,” performing Franz Schubert’s Der Hirt auf dem Felsen for Soprano, Clarinet and Piano, D. 965; Ralph Vaughan Williams’ Three Vocalises for Soprano and Clarinet (1958); three arias—by Wolfgang Amadeus Mozart, Vincenzo Righini and Vincente Martin y Soler—from Michaels’ Cedille CD Divas of Mozart’s Day, arranged for Orion by Pete La Bella; and two works by Dmitri Shostakovich: “Music” from Seven Romances on Verses by Alexander Blok for Voice, Violin, Cello and Piano, Op. 127, No. 7 (1967), and Trio in E Minor for Violin, Cello and Piano, Op. 67, No. 2. Performances are March 10 (Geneva), 13 (PianoForte Salon/Chicago) and 17 (Evanston).