I recently had an interesting discussion with a band-mate about which melody for Shady Grove is the oldest: the one that has the minor chord progression (ie, Em-D-Em-G-Em-D, etc.), which I first heard as a folk tune in the 60's, or the one that bluegrassers do, which is a major chord progression (G-D-G, etc.), but has a definite old timey sound. Do any of you Mudcatters know which is the older ??