Samuel Barber, one of America’s most celebrated composers, was born on this day (April 9) in 1910.  The young filmmaker  H. Paul Moon has made a full-length documentary about Barber that will be released later this month.

“I went out on a limb with this project, self-distributing, keeping it independent, making sure I got things right without compromise,” Moon says.

The 3-minute trailer below lines up some famous people with their insights on Barber, in this order:  William Schuman, Thomas Hampson, biographer Barbara Heyman, Leonard Slatkin and Leonard Bernstein.