It’s been 50 years since the Beatles issued their final studio album, Abbey Road, and to celebrate, Apple Records has just released several deluxe versions. The biggest selling point is a brand-new remix of the original album by Giles Martin, son of Beatles’ producer George Martin. Also included are various demos and alternate versions that give us a peek behind the scenes of the Fab Four’s final masterpiece.

And, to talk about it, we welcome back Rob Rodriguez, who has written many books on the Beatles, including Fab Four FAQ 2.0, Revolver: How the Beatles Reimagined Rock n’ Roll, and Solo in the Seventies. He also hosts a podcast called Something About the Beatles.