Ercole de' Roberti: Concert, c. 1490
A musician is a person who plays or composes music. Musicians can be classified by their role in creating or performing music:
Musicians may also dance or produce choreography. The concept of the musician and the status of the musician in society varies from culture to culture.

Dance music is music composed, played, or both, specifically to accompany dancing. It can be either the whole musical piece or part of a larger musical arrangement.