This appears on Flook’s album Flatfish along with The Acharavi Waltz and From Kerry We Did Sail.
I’ve left this in the original key as it’s not, really a whistle piece (neither is it really a reel). You can play it if you transpose to E dorian, but you end up having to invent a new ending for want of a low C#.
If anyone knows how, that 2nd time bar should really be a coda.
I play this tune with 2 different key whistles:
D whistle: very difficult cross fingering because of the fast progression of flat, natural and sharp notes.
Eb whistle: more friendly fingerings, and in the natural D parts I just close half of the end of the whistle with my little finger.
Nice transcription by the way!