Bach Week Festival: The 39th annual edition concludes with two weekend programs. At 7:30 p.m. Friday, guitarist Adam Levin, harpsichordist Jason Moy and flutist Alyce Johnson will play instrumental works, and Bach motets will be performed by chorus and orchestra under Richard Webster’s direction. At 3 p.m. Sunday, a Bach cantata will share the bill with the “Brandenburg” Concerto No. 4 and Orchestral Suite No. 1. Nichols Concert Hall, 1490 Chicago Ave., Evanston; $40, $35 for seniors; 800-595-4849, bachweek.org
Chicago Symphony Orchestra: Cellist Yo-Yo Ma performs Dvorak’s beloved Cello Concerto, with guest conductor Carlos Miguel Prieto also leading works by Moncayo and Beethoven. 8 p.m. Saturday and 3 p.m. Sunday; $39-$282. Ma returns as soloist, this time in Haydn’s D major Cello Concerto, as part of a Classical-era program of Haydn, Locatelli, Rebel and Mozart led by Ton Koopman; 8 p.m. Thursday (repeated May 11); $35-$276. Symphony Center, 220 S. Michigan Ave.; $39-$282; 312-294-3000, cso.org
Civic Orchestra of Chicago: Lyric Opera music director Andrew Davis conducts members of the Ryan Opera Center in their first collaboration with the CSO’s training orchestra. The program holds concert versions of Mozart’s “The Marriage of Figaro,” Act 2; and Puccini’s “La Boheme,” Act 4. 8 p.m. Monday at Symphony Center, 220 S. Michigan Ave.; free, but tickets required; 312-294-3000, cso.org
Civitas Ensemble: Pianist Winston Choi joins the CSO string and wind group for works of Beethoven, Dvorak and Milhaud. 2 p.m. Saturday at Grainger Ballroom, Symphony Center, 220 S. Michigan Ave.; free, but tickets are required; 312-294-3000, cso.org
Elgin Symphony Orchestra: The versatile cellist Matt Haimovitz will join guest conductor Victor Yampolsky for the season finale, which holds Saint-Saens’ Cello Concerto No. 1 and Rimsky-Korsakov’s “Scheherazade.” 1:30 p.m. Friday, 8 p.m. Saturday and 3:30 p.m. Sunday at Hemmens Cultural Center, 45 Symphony Way, Elgin; $24-$70, 847-888-4000, elginsymphony.org
JACK Quartet: The cutting-edge contemporary ensemble performs works by Helmut Lachenmann, Simon Steen-Anderson and others. 7:30 p.m. Monday at Regenstein Recital Hall, Northwestern University, 50 Arts Circle Drive, Evanston; $6; 847-467-4000, pickstaiger.org
Keyboard Conversations: Pianist Jeffrey Siegel explores the musical love triangle of Robert and Clara Schumann, and Johannes Brahms. 7:30 p.m. Friday at Pick-Staiger Concert Hall, Northwestern University, 50 Arts Circle Drive, Evanston; $22; 847-467-4000, pickstaiger.org
George Lepauw: The gifted Chicago pianist plays a recital of Beethoven, Scarlatti and Debussy. 7:30 p.m. Friday at Grand Piano Haus, 3640 W. Dempster St., Skokie; $20; 847-679-9160, grandpianohaus.com
Lira Ensemble: Cinco de Mayo and Polish Constitution Day are celebrated with a free concert of Mexican and Polish music by Cuerdas Clasicas String Ensemble and the Lira Singers. 4 p.m. Sunday at St. Bruno Church, 4751 S. Harding Ave.; 773-508-7040, liraensemble.org
Music in the Loft benefit: The legacy of the series’ late founder and director, Fredda Hyman, will be celebrated with performances by the Ying Quartet, Lincoln Trio, Adam Neiman, Patrice Michaels and others. 3 p.m. Sunday at Standard Club Ballroom, 320 S. Plymouth Court; $100-$150; musicintheloft.org
Northwest Symphony Orchestra: Paul Vermel conducts the 60th season finale, a pops concert featuring young cellist Austin Huntington as soloist. 3:30 p.m. Sunday at Maine West High School, 1755 S. Wolf Road, Des Plaines; $20, $15 for seniors; 847-965-7271, northwestsymphony.org
Orion Ensemble: Chicago jazz pianist Miguel de la Cerna performs the world premiere of his “Livingston 8 — A Fantasy,” an Orion commission. Faure’s Piano Quartet in C minor and a clarinet-piano arrangement of Gershwin’s “Rhapsody in Blue” complete the program. 7:30 p.m. Sunday at Nichols Concert Hall, 1490 Chicago Ave., Evanston; 7:30 p.m. Wednesday at Ganz Hall, Roosevelt University, 430 S. Michigan Ave.; 7 p.m. May 13 at Fox Valley Presbyterian Church, 227 East Side Drive, Geneva; $26, $23 for seniors, children 12 and younger free; 630-628-9591, orionensemble.org
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