Leonard Lehrman is the protégé of Elie Siegmeister, who called him his “Continuator.” His 232 compositions have been heard on six continents. His other teachers included Nadia Boulanger, Olga Heifetz, Earl Kim, Jean-Jacques Painchaud, Lukas Foss and Robert Palmer. He worked on completing works by Marc Blitzstein with Leonard Bernstein and is the founder of The Metropolitan Philharmonic Chorus. On Friday’s “Leonard Lopate at Large” on WBAI, Leonard Lehrman talks about his experience composing and performing with some of the biggest names in classical music and some exciting upcoming performances of his music.