Bee Gees co-founder (and lone surviving member) Barry Gibb opens up to Apple Music’s Zane Lowe about learning to write music from listening to The Beatles, the competitive relationship he had with his brothers Robin and Maurice during the zenith of the trio's popularity, and bringing in a who’s who of Nashville stars to recreate some of the group's biggest hits for his duets album Greenfields: The Gibb Brothers’ Songbook, Vol. 1.