Once when I was kind of hammered and fooling around on the guitar in A minor, I spontaneously started singing the Pontchartrain lyrics to the (Baez/Dylan etc. version) Lily of the West tune. No wonder the words scanned so well!Damn, I thought it was my idea. Because the most popular versions of each song have quite different tunes in different modes. Or the same tune in differnt modes which makes them sound different, I'm not smart enough to tell.
Humbled Bill