"Turkey's mighty far from Philadelphia"

...and yet, Philadelphia (as it used to be known) is IN Turkey, as well as elsewhere in the Middle East. Geez, didja think Billy Penn made up the name himself??? Nahhh, he borrowed it from the Old World!...

Alaºehir, Turkey was known as Philadelphia, one of the seven churches of Asia Minor in the Book of Revelation
Amman, Jordan was once called Philadelphia during the Hellenic and Roman eras
Darb Gerza, Egypt an archeological site of a city called Philadelphia, now in the Al Fayyum Governorat
    (from Wikipedia)

...so Mr. Barlow's "Philadelphi Canoe Fiddle" may not have come from America at all! Based on what Joy says about his habit of taking inspiration (particularly in the naming of things) from the world of the past, it wouldn't surprise me a bit to hear that his instrument was of Middle Eastern origin.