#1
What interval is the pitch incomparison to the open string if you hit a natural harmonic on the 3rd fret?
#2
Depends on where you hit the third fret. The harmonics on the third fret are as follows...
2 octaves + 5th, 2 octaves + b7th, 3 octaves, 3 octaves + 2nd, 3 octaves + 3rd. I could write them as extended intervals but I'm not going to.
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