Here are the three "Lost Harp" Scenes:
(also known as the St. Patrick Day Scenes)
Ancestral Castle 101:
Immigrant Ship 101:
Musical Quinns 101:
*Shows the locations of all the items we've come across while I was working on 5/5 trophies
Some people are reporting having trouble find these scenes and not finding them on the "Featured" tab of the scene list. If this is happening to you, try cleaning the browser's cache file; then if still missing, contact Zynga for assistance.