One of the more unsung British progressive bands, the Strawbs differed from their more successful compatriots -- the Moody Blues, King Crimson, Pink Floyd -- principally in that their sound originated in English folk music rather than rock. Their transformation from acoustic bluegrass outfit to progressive folk-rock innovators was an impressive feat, and they hit their stride with gems like 1972's Grave New World and its follow-up, Bursting at the Seams. They survived a breakup at the end of the decade and enjoyed a robust revival period in the mid-'80s that helped carry them and their fans into the 21st century. The Strawbs of the 2000s were particularly prolific, delivering an array of studio albums including 2005's Painted Sky and 2009's The Broken Hearted Bride. Over the years, the group remained stylistically adventurous even on late-period outings like 2021's Settlement, released over 50 years after their debut.