The Butterfly - E MinorSlip Jig

The B and C parts of this tune were originally an older tune called Bill Groggin's Goat or Barney's Goat or "S Óró 'Thaidhg, a Ghrá", dating back as far as the 16th century. The A part was possibly written by Tommy Potts, but it is very similar to a tune called Bothar an gCloch that dates from the 18th century or earlier. The Butterfly was used as the theme song for the movie The Secret of Roan Inish.

Ref: https://thesession.org/tunes/10
Ref: http://slowplayers.org/2014/05/04/the-butterfly-edor/
Ref: https://www.youtube.com/watch?v=YNvqLynYboo
Ref: https://soundcloud.com/averylevine/bothar-na-gcloch-the-cock-and-the-hen-bb-flute
Ref: https://tunearch.org/wiki/Annotation:Butterfly_(3)_(The)

:	Em-D	Em-Bm	Em-D	G_D	:
:	Em-D	Em-Bm	Em-D	Bm--	:
:	Em-D	Em-Bm	Em-D	Bm--	: