Don't know whether I agree with this or not. I've long used rap music and beat poetry as my examples of the boundary conditions. While musical instruments are indeed used in performances of both, IMO [I don't have humble ones] neither rap nor beat poetry is "music". "Art" yes, most definitely. But not "music".

(And no, I'm not merely reacting from the point-of-view of someone who doesn't like rap)

Comments?

BB,
NightWing