A note: I do not play dulcimer. I have never even strummed one.
Below is how I tune my guitar to mimic the dulcimer.
What is clear is that Buck uses the Mixolydian Tuning which is D-A-D.
Below, I tune my guitar to D-A-A-D, primarily because of the ease of keeping the D
string at it's normal tuning and then using the still correctly tuned E-A-D to play the
power chords.
Also, I have put some of the open notes in, but the idea of the dulcimer is to strum the
board entirely with each note.
"A thumbnail sketch ..."
d|-7-0-------------------7-------|
a|-5-5-0-4p-0-4p-0-5-5-0-5-------|
A|-0-0-------------------0-------|
D|-0-0-------------------0-------|
"A mean idea ..."
d|-7-0---------------|
a|-5-5---------------|
A|-0-0---------------|
D|-0-0---5b-4-0-2-0--|
"Old man ..."
d|-7-0---12-10-9-0---|
a|-5-5---------------|
A|-0-0---------------|
D|-0-0---------------|
"point to point ..."
d|-7-0--------------------|
a|-5-5---4-5p-0-4-0-5-5-4-|
A|-0-0--------------------|
D|-0-0--------------------|
"Standing on the shoulders ..."
d|-7-0---------------|
a|-5-5---5p-0-4-0-5-0|
A|-0-0---------------|
D|-0-0---------------|
"Leaves me cold ..."
d|-7-0----------------------|
a|-5-5-0-4p-0-4p-0-5-4b-0---|
A|-0-0----------------------|
D|-0-0----------------------|
That's the first verse. All other riffs are variations on these, so feel free to play around.
Bend and pull off on the 2nd and 4th fret. Everything builds off
of the chord on the 5th and 7th fret, so as long as you return there you're golden.
End
At "Everybody hit the ground" the dulcimer focuses on the high d string.
d|-5-7h-7-12-10-9-7-----|
a|-0-0--5--0--0-0-0-----|
A|----------------------|
D|----------------------|