Fidelity vs. Musicality...........Is there a tug of War?

Musicality is the purview of the musician. It is not the lack of annoying sonic characteristics such as sibilance or bass resonance. 

I have never appreciated a pan-accurate system that sounded bad. There are painfully few accurate systems anyway. I suppose you could say a system either sounds good or it does not. Accurate is very specific. Everything else is relative, relative to that person's experience.  You can't know what something sounds like if you have not heard it.

Every system is different and has a different set of problems and solutions. The permutations are endless which is what makes this an entertaining challenge. 

I remember the first glorious five seconds I heard the JC1s in my system. "I'm really going to like this!" Don't you love those moments? 

The terms are properly seen as synonyms, not antonyms. You are screwing up the endeavor of creating a superior rig and listening experience when you see them as antithetical.  :(

@oregonpapa “When you go to a live, unamplified performance, of a small jazz group, or even a symphony orchestra, do you sit there and say to yourself ... "Oh my God! ... listen to that detail?"

Great way of putting it. That was actually one of my observations… I can hear incredible detail… the wall reflections nuance of the acoustic space… but they are not stuck in your face. 
Oregon Symphony… Oregon PaPa?

douglas_schroeder has it right.  Fidelity IS musicality.  Musicality in this context is more than only the purview of musicians; it is also a component’s ability to more faithfully reproduce the details of what comprises that purview.  Some gear does this better than others.  The closer the sound of a component or system gets to the true sound of music (fidelity), the more musical the sound is.