I was listening to Radio 3 while cycling and heard "the plough that broke the plains" -I cant remember who wrote it, but it had the same slow tune as Copland wrote into Rodeo and there were definite differences ,I prefered Copland's.
I'm now racking my brain to remember the English composer that set playford and other early tunes in a suite = Warlock! thats him. Capriole suite.
I havent heard any Britten's folk adaptations that I liked, but Butterworth is lovely, and Vaughan Williams has some good "garland" arrangements, as does Percy Grainger. Don't lets forget Gay's Beggars Opera!
Thank you for the advice about Maurice Emmanuel.
There's a bunch of Spanish composers that make the most of their heritage, as does Italy's Resphigi in Ancient airs and dances (lute tunes)not forgetting Rodrigo's guitar works-
I think I could go on and on, but I need to go through my record collection- There are the Palladian Ensemble@ exploration of old Scottish and Italian-British composers, and someone who wrote a collection of songs/tunes called Colin's Kisses!