The first one, The Lone Piper, is a true story: a bagpiper promised his best friend to play for him on his birthday, but then the friend went off to war and was killed. The piper kept his promise despite the fact that his friend was dead -- he went to the graveyard and played on the friend's birthday. In fact, he did this year after year.
Did you know that Scotland the Brave has lyrics to it? I did, but I'd never heard a singer perform the song until this weekend.