About the film
The American Epic Sessions is a documentary film in which an engineer restores the fabled long-lost first electrical sound recording system from 1925, and twenty contemporary artists pay tribute to the momentous machine by attempting to record songs on it for the first time in 80 years. The film was directed and co-written by Bernard MacMahon and stars Nas, Alabama Shakes, Elton John, Willie Nelson, Merle Haggard, Jack White, Taj Mahal, Ana Gabriel, Pokey LaFarge, Beck, Ashley Monroe, Los Lobos, The Avett Brothers, Bettye LaVette, Rhiannon Giddens, Raphael Saadiq, Edie Brickell, Steve Martin, and others.
From the film's Wikipedia article (CC BY-SA 4.0).