Quote:

One records a mono instrument in stereo using 2 mics. It's done quite frequently for acoustic guitars. Gives you a "wider" sound.






Yes, that is true, though I don't know how frequently.
I've seen engineers do it . . .











. . . but I'm skeptical how much effect that can really have. We're talking inches apart.


And, by the way, for electrical guitars, GE Smith always performs live with two amps (though not in "stereo" per se) and some Rickenbacker guitars have a stereo jack.