[rafaelmn]

This is a bad analogy because food is dual purpose - nutrition and enjoying the taste.

Music is just about subjective enjoyment - you will not get cancer if the piano was not in tune - and if you can't tell the difference then it is irrelevant to your experience.

[AnthonyMouse]

Have a look at the research as to the effect of music on mood and mental health.

[rafaelmn]

I wonder how fragile you must be to have a breakdown because a piano was out of tune, at a degree where it's not perceptible to anyone but experts.

[1propionyl]

Not to mention that food and music both have a third (set of) purpose(s)/value(s): culture.