Easy on us drummers boys...ya know, it's a two-way street:

Q. How can you tell a bagpiper with perfect pitch?
A. He can throw a set into the middle of a pond and not hit any of the ducks.

Q. What's the definition of a minor second?
A. Two bagpipes playing in unison.

Q. How do you get two bagpipes to play a perfect unison?
A. Shoot one.