Despite woes, Harlem Quartet still plays on The quartet was ready to take off, before it threatened to come apart ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page Yoon S. Byun/Globe Staff The Harlem Quartet, from left, violinist Ilmar Gavilán, violinist Melissa White, violist Juan Miguel Hernandez, and cellist Paul Wiancko practiced before their performance at Jordan Hall in Boston on Feb. 16, 2012. Paul Wiancko announced to the group last fall that he would be leaving. Pat Greenhouse/Globe Staff Members of The Harlem Quartet chilled backstage before their performance at the Emerson Umbrella Center for the Arts on April 1, 2012. Pat Greenhouse/Globe Staff Ilmar Gavilán (violin) played a brief solo during The Harlem Quartet's performance at at the Emerson Umbrella Center for the Arts in Concord. Yoon S. Byun/Globe Staff The Harlem Quartet greeted the audience before performing at Jordan Hall in Boston on Feb.16, 2012. Yoon S. Byun/Globe Staff Melissa White practiced before The Harlem Quartet's performance in Boston. Hilary Scott The Harlem Quartet performed with Chick Corea and Gary Burton at Ozawa Hall at Tanglewood on Aug. 26, 2012. Yoon S. Byun/Globe Staff Juan Miguel Hernandez practiced in the green room before performing as Melissa White ate. Essdras M Suarez/Globe Staff Gavilán, White, and Hernandez shared a light moment while they auditioned a potential new cellist (not shown) on March 1, 2012, at the New England Conservatory. Andrew Spear for The Boston Globe White, Gavilán, Wiancko, and Hernandez unloaded their equipment from the van in Yellow Springs, Ohio, on March 17, 2012. Andrew Spear for The Boston Globe Cellist candidate Matt Zalkind practiced for his audition for the Harlem Quartet at his hotel room in Springfield, Ohio. Andrew Spear for The Boston Globe White, cellist candidate Matt Zalkind, Hernandez, and Gavilán played together during the audition. Andrew Spear for The Boston Globe Current Harlem Quartet's cellist Paul Wiancko, center, talked to cellist candidate Matt Zalkind (foreground) at a master's class at Antioch College in Ohio on March 17, 2012.