well, nightbird...I saw a young fellow win the mandolin contest at Winfield many years ago with a tune no one could identify...they liked it a lot, but were puzzled.....so, at the awards ceremony, he explained that he had played Fritz Kreisler's "Mozart Rondo" in Bluegrass style...

so...there are many things that go into making a song or tune 'tend' toward trad...*grin*