See Dancing to the Music: What you need to know about music licensing tariffs and fees, an article via The Dance Current, that breaks down different aspects of music copyright and applicable...
A handy document via Dance Heritage in Washington, D.C. for best practices when using dance-related materials like photos, videos, documents, etc.:
See various articles on the topic of copyright and choreography:
Dancing Around The Issue of Copyright Of Choreographic Works (American law)
Anne Teresa de Keersmaeker responds to Beyoncé’s ‘inspiration’ for her Countdown