Final answer:
Lawrence Harry Mixson of the Epsilon Chapter at the University of Florida wrote 'The Rose of Pi Kappa Phi.' This song is a notable part of the fraternity's culture and is often performed at formal fraternity events.
Step-by-step explanation:
The song "The Rose of Pi Kappa Phi" was composed by a member of the fraternity who goes by the name of Lawrence Harry Mixson. His chapter designation is Epsilon Chapter, which is affiliated with the University of Florida. It's a piece that has become quite significant within the fraternity, often sung at formal events and ceremonies. Lawrence Harry Mixson's contribution to the fraternity's history and culture through this song underscores the rich traditions that Greek organizations hold dear and often include in their collegiate rites.