Music is a vital part of dance. In fact music and dance are really two units of one single thing. When the music and movement merge, it is a beautiful thing to do, watch, and hear. There are some dancers, and very likely musicians, who never learn this. Those dancers view dance as something they do and music is played while they perform their dance. A good many of these dancers have learned to dance with recordings and memorize their movement. There are times that movement has no relationship with the music except it may be fast, or slow, etc. My experience with dancers and musicians has been those who engage in their art for the joy of engaging in their art are usually a pleasure. Those who engage in their art for some other reason such as they think its cool, or they like wearing pretty dresses, or they love the sound of taps so much they wear them up the aisle and to the bathroom, or maybe their mothers love seeing their darlings in pretty dresses, etc. are usually a pain.