@mahgister
I think in all the arts, it's a question of having something to say and choosing an art in which to say it. Again, in the Jazz Series, musicians talk about other musicians telling a story with their music. I think in an art like poetry it is most difficult to say something because words get in the way. How does one get past words by using words?
Back to music and jazz. There are very talented musicians who really don't have much to say, or at least have less to say than the very deep musicians. One might pick up an instrument at a very young age and find that she has great ability, but later, when she has mastered the instrument, she really doesn't have much to say. Whereas Billy Holiday or Chet Baker or Coltrane (who had mastered his instrument) have much they want to say about being human.
We must remember that music is a very old human art. It most probably began with the beginning of humanity. I think some arts explicate, but music congregates. People love to be together "getting" the music as if they are one. It's a tremendously joyous thing to be among people who like yourself can understand this most abstract of art forms. I cannot imagine being human without there being music.