DiMono said:
I define music very simply as something having a musical melody.
Then I guess it isn't music to you. Unfortunately, it is still music as defined by the Elements of Music.
You may not like it, but that doesn't mean it isn't music.
Same for people that deny video games as a viable art form (don't want to talk about this right now, just sayin').
I try not to get my opinions mixed up with my definitions of things, so here are the 8 elements that define music. If a piece contains any of these, it can be called music. Maybe not music that you like, but music nonetheless.
1. Melody - the main idea in a piece of music. Ex: Raiders of the Lost Ark. Are you thinking of the trumpet line? That's the melody.
2. Dynamic - the volume of the music at a given time.
Harmony - two or more notes being played at the same time.
Instruments (Texture) - the number of discrete parts being played. A 4-man rock band would have (you guessed it) 4 parts.
Meter - the beat or pulse of the music.
Rhythm - how the music moves through the time.
Tempo - how fast or slow the music is played.
Timbre - the way a given insturment sounds. It's the warm sound from violins, and the "brassy-ness" of trumpets.
This is an extra, but it's sometimes used to define music.
Aesthetics - the "feel" of the music. Does it make you happy? Sad? Do you want to headbang? That sort of thing.
Hope that helps. Here's the source I used.
Elements of Music [http://www.cartage.org.lb/en/themes/arts/music/elements/elemofmusic/main.htm]
Edit: Listen to Flobots. Rap that has great instrumentation behind the lyrics.