Guess I’m not quite done pontificating after all… 
There are 3 angles that determine how a guitar is positioned. What should we call them? Are there any terms in common use? Lack of common terms make it hard to discuss.
#1 - I think this is what most people mean by “neck angle” - the angle of the neck relative to the floor
#2 - the angle of the guitar body from vertical. Better term, anyone?
#3 - the angle of the guitar neck relative to the player’s torso. Again, what do we call this?
Varying these angles have different trade offs for different body shapes, types of guitar, and styles of music. I think it’s important to be able to discuss them with more precision than is common in the community.
In aviation we have pitch, roll, and yaw…what are the guitar equivalents?
This is a callout to all you engineering and semantics nerds! (I’m allowed to use that word…'cause I are one 
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