The article starts really badly with "Music is generally defined as a succession of pitches or rhythms, or both, in some definite patterns."

The big three in music are pitch, rhythm and TIMBRE, guys, TIMBRE (the "sound" or "tone" of the piece).

Why is Beethoven's Ode To Joy somewhat annoying on the recorder, and can drive a room of hardened Germans to tears when played by a top-notch symphony orchestra? Timbre!

In the construction of classical musical pieces, this is controlled with orchestration. It's why a Hans Zimmermann score sounds punchy or etheriel or whatever is called for by the script.

I basically stopped there, because, well, if you don't care how your music _sounds_ it isn't going to sound very good.