The Rock (or Roke) and Wee Pickle Tow is one of the town tunes of Linlithgow in West Lothian, and is played VERY early in the morning on Linlithgow Marches Day by whistlers, pipers an a'. It is almost identical to the Irish tune, "O'Sullivan's March".
https://www.youtube.com/watch?v=pCYaLwZf9Yo
Yes, that was 6 AM, and the flutes and whistles were at 5 AM!