How friendly experiments led Robert Plant and Alison Krauss to record ’Raise the Roof’

Legendary singers Robert Plant and Alison Krauss, two of music’s greats, have teamed up again for a new album with plans to tour internationally — for the first time in 12 years. Jeffrey Brown went to Nashville to talk about the magic behind the music-making as part of our arts and culture series, CANVAS. Stream your PBS favorites with the PBS app:  Find more from PBS NewsHour at  Subscribe to our YouTube channel:  Follow us: Facebook:  Twitter:  Instagram:  Subscribe: PBS NewsHour podcasts:  Newsletters: