Melody and rhythm is what I think defines music. While I think Rap has plenty of rhythm most songs I've heard lack melody and musical phrasing and just have a background looping over and over.
Just about every rap song has some form of melody to it, so that debunks that whole arguement there.
The musical phrasing and lyrics are, for the most part, much
better than that of rock, or any form of non-rap really. You find a good rapper, and they'll come up with some of the most creative ****, ever. Sure theres a lot of rappers out there that are like "lol i shoot ***** and i roll on dubs, if you ever step to me youll be in some troubs" and stupid **** like that, about ******s ******s drugs ******s druggame cocaine, all that bull****. But you also get ****ty bands that just go "Mary left me in the dust, guess theres no more chance for us" and **** like that. So that effectivly debunked another reason why you think rap isn't music.
Having a background looping over and over isn't anything differt than most songs. Chorus Verse Chours Verse Bridge Chours Verse Chours. There, that's
just about 90% of
all styles of vocal music. So theres another thing debunked.
So if you actually get any
real reasons that isn't just "lol loops lyrics no instruments", please let me know.