I have a curiosity question regarding the notation of the bag pipe. I am an amateur organ player, but have no experience with bag pipes. When I read the score as posted by ecnice, it seems to me that the bag pipe notes are written in a strange key.
They are marked with the symbol for "normal piano right hand key" (this is called the G key in danish, don't know the english term). In this key, the first notes read: a - d - e - f - e - d... which would sound like a minor chord, but listening to the recordings, it is certainly a major chord (the "tonic" i believe it's called, it must be an E-flat, to match the organ).

What is going on here? Is this common notation for bagpipe music?
I know this is not a bag pipe forum, but maybe somebody could still provide a hint?
Regards
OleMik