Video by Ross Monagle For the past 14 years, the Kepler Quartet—violinists Sharan Leventhal and Eric Segnitz, violist Brek Renzelman, and cellist Karl Lavine—have been working closely with maverick American composer Ben Johnston to learn and record his music. This past month, shortly before Johnston’s 90th birthday, the Quartet has finally completed their third and […]