Thank you henryp
BLOW AWAY THE MORNING DEW   aka   The Baffled Knight
Joni Mitchell - Blow Away the Morning Dew (1965)     https://www.youtube.com/watch?v=Nv0GmHMNFTw
The King's Singers - Blow away the morning     https://www.youtube.com/watch?v=DH8BcvoO8hk
Blow Away the Morning Dew · Lindsay Straw    https://www.youtube.com/watch?v=eN3XA_ry9hI
Blow Away the Morning Dew · John Langstaff    https://www.youtube.com/watch?v=2QZKi_6Jl6w
Clear Away the Morning Dew [Roud 11, Child 112], - Sam Larner    https://www.youtube.com/watch?v=Mu1OtW23uVU

From Wikipedia: The Baffled Knight    https://en.wikipedia.org/wiki/The_Baffled_Knight
Mainly Norfolk : Lyrics and Info    https://mainlynorfolk.info/eliza.carthy/songs/thebaffledknight.html