How exactly would you describe the timbre of a harmonic...natural and artificial to...to someone who's never heard one?
I've heard chimes.
apparently UG's only type O-

Quote by Strike9

Thanks jb_designs.
If you use a decent tube amp even natural harmonics sound sick!
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I'd say a Natural Harmonic sounds like chimes, and an artificial harmonic ranges from a squeel to a deathly big squeel that sounds cool.
Depends on what kind, and the guitar tone.

Natural harmonics I would say sound like bells, or chimes

Pinched harmonics with HIGH GAIN, preferably, sound like squeals

Random natural harmonics achieved when muting with one finger sound like metallic collisions. Like chimes, but more chaotic and dissonant.