How much simpler would life be without music?

Without the mathematics of #9's and b15's? Without the relationships of V7's and the V7's V7?

What if no person ever, anywhere, could ever tune their voice to any one pitch. Imagine a world, where sound, not even sound, dissonance is the only vibration we ever come into contact with.

No singing.

No piano. No guitar.

No drums.

It begs the question to be asked: Is the expense of over-complicated tonal relations worth the augmentation of lifestyle?