Tuning the Mountain Dulcimer
In tuning the mountain dulcimer, the top two strings are tuned
to the same pitch. There is always an interval of a fourth between the strings:
so if the top two strings are a "G," then the bass string or melody
string is a "C." If there are four strings, then the bottom two strings
are tuned to the same pitch. "DO," or the first note of the scale,
should fall on the third fret of the top string.
Virginia's Appalachian Music and Literature in AppLit