Many early forms of music and dance were created and performed together. This paired development has continued through the ages with dance/music forms such as: jig, waltz, tango, disco, salsa, electronica and hip-hop. Some musical genres have a parallel dance form such as baroque music and baroque dance; others, such as classical music and classical ballet, developed separately.
Although dance is often accompanied by music, it can also be presented independently or provide its own accompaniment (tap dance). Dance presented with music may or may not be performed in time to the music depending on the style of dance. Dance performed without music is said to be danced to its own rhythm.
Ballroom dancing is a dance art form which combines athletic fitness with artistically skillful dance steps.