It doesn't exist and no, it doesn't matter.
"Without it, we'd probably enjoy the music with one less distraction circulating around in our wee brains taking us away from becoming lost in (enjoying) the music."
Indeed I agree with Jax and Charles1dad. Accuracy is relative, it is not exact because it is ever changing. Even if a particular component could be quantitatively and subjectively by concensus identified as "accurate", when placed in a mix of other components with so many variables and then adding in the room it is going to have a specific sonic identity as you state 57s4me. But you really know the answer to this question, it is really rhetorical. The only thing that matters is enjoyment it is the only thing that is real and if it doesn't stay that way, time for a change.
"Without it, we'd probably enjoy the music with one less distraction circulating around in our wee brains taking us away from becoming lost in (enjoying) the music."
Indeed I agree with Jax and Charles1dad. Accuracy is relative, it is not exact because it is ever changing. Even if a particular component could be quantitatively and subjectively by concensus identified as "accurate", when placed in a mix of other components with so many variables and then adding in the room it is going to have a specific sonic identity as you state 57s4me. But you really know the answer to this question, it is really rhetorical. The only thing that matters is enjoyment it is the only thing that is real and if it doesn't stay that way, time for a change.