The first two Byrds albums (prompted by recent Mojo article). Oh Susanna must surely be one of the worst things ever recorded by a major band, not least of all because anyone approaching from Alabama with a banjo on their knee should definitely be turned away at the border.
I had the great privilege of being at The Maverick festival once, watching some old timey Americana duo be absolutely delighted to be introduced by our compere, one Stephen Foster.