Their first two, groundbreaking Folkways LPs, plus a previously-unreleased go at the Louvins’ Childish Love. Decent booklet, with various essays and great photos.

‘When those albums first came out, I was disappointed with the quality of the sound,’ writes engineer Peter Siegel. ‘I think the new masters better capture the essence of Hazel and Alice’s music, and sound more like the traditional bluegrass style that these performances represent.’