Gunther Schuller, the composer, conductor and musicologist who coined the term “third stream” to describe his own and others’ hybrids of classical music and jazz, has died at 89.
In an obituary for The New York Times, Allan Kozinn notes that Schuller lived a musical “double life” as a composer, scholar and performer, at one time playing for both the Metropolitan Opera orchestra and in a group led by the jazz trumpeter Miles Davis: