British rockers Mostly Autumn count the late Richard Wright (of Pink Floyd) and Deep Purple's Jon Lord amongst their fans.
They have supported Bryan Adams, Blackmore's Night, Uriah Heep and Jethro Tull in recent years.
They are playing live in the studio.
Lucy Wainwright Roche duets with her father Loudon Wainwright III, who also performs solo and discusses his box set collection from the past 40 years in a recorded session.
Nils Lofgren also pops in with his acoustic guitar.
Nils Lofgren and Mostly Autumn are live.
Lucy Wainwright Roche and her father Loudon duet.