The beautiful noise that comes from two guitars that are harmonizing together; often producing entrancing noise that leaves those in hearing distance speechless.

Over-The-Pants-Hand-Job. Distant cousin of the dry hump.

In guitar-based music, guitarmony is the use of overdubbing (or multiple live guitarists) to create a chorus of guitars playing in harmony (see Dickey Betts of the Allman Brothers, Brian May of Queen, Jimmy Page in later Led Zeppelin work, etc.). At the hands of skilled, well-rehearsed musicians, guitarmony can produce incredible results.

A sweet pair of guitars making luscious melodies.

Guitarmony - guitar harmonics, a song by the Speed Metal band HEATHEN