Ballet, a formalized kind of performance dance, has become a highly technical form of dance. It is a poised style of dance that incorporates the foundational techniques for many other dance forms. [source: wikipedia]

Jazz dance is frequently influenced by other dance styles such as acro, ballet, contemporary, lyrical, and hip hop. In turn, many other dance styles are influenced by jazz dance. [source: wikipedia]

Lyrical dance is a modern dance form which fuses modern dance, jazz, and ballet. It requires excellent technique to perform, as the moves are often difficult and precise.

Tap dance is a form of dance characterized by a tapping sound that is created from metal plates that are attached to both the ball and heel of the dancer's shoe. These metal plates, when tapped against a hard surface, create a percussive sound and as such the dancers are considered to be musicians. [source: wikipedia]