12 hours ago, MigL said:

Music is not an instrument; it is a composition.

... or an interpretive performance of that composition, maybe?

My comment was directed at a pretty abysmal pedagogical method - akin to how I was taught to play the recorder at age 5 by having the edge of a ruler crack my knuckles whenever I played a wrong note. Your reply seems non sequitur. A misunderstanding perhaps?

12 hours ago, MigL said:

You would be surprised what a former member of Depeche Mode could do with a Casio in 1982, along with Alison Moyet.

I was thinking more of this minimalist masterpiece

12 hours ago, StringJunky said:

Music is the art and can be expressed in any form. You don't have to be an artisan/craftsman with some instrument to make music. A person that can create perfect copies is not an artist, even though their skill may be immense; s/he is a technician. Skill alone does not make an artist.

Ditto, really.

Though if the performer lacks the basic technique a piece demands, it's really difficult to make it a musical experience for the audience.

Florence Foster Jenkins springs to mind.

Yeah, I know what you meant.
It is the use of the instrument that matters, even a 'lowly' Casio.