Historically, the Highland Pipes have at times been considered "armaments" ... the pipers may not be entering the Church "under arms". "Amazing Grace" was not written for the pipes, but sounds best (to me) played on them.
My problem is with the modal scale on the pipes. If you listen carefully, the high "A" at the top tends to be flattened slightly. When the pipes hit the high "A" at the end of the 8th bar of "Amazing Grace", it really makes the hair stand up on my neck (and not in a good way).
But the REAL abomination of desolation is the "Star Wars" theme played on the pipes. THAT ought to be a capital offense.
After the '45 Rising, the pipes were banned as an "instrument of war" right along with the broadswords and ball-trigger pistols.