One of the Christmas specials (my aging brain promptly forgot which)
included this carol and it sounded odd to me because the second note of
"this" was sharp to what I expected; then I realized it was Dorian mode.
I checked Wikipedia and found that "Greensleeves is in Dorian mode
<http://en.wikipedia.org/wiki/Dorian_mode>, though modern musicians
sometimes play it in the natural minor scale
<http://en.wikipedia.org/wiki/Natural_minor_scale> instead."

Did anyone else notice it?

PGS