Modern dance and competitive ballroom dance both place great importance on rhythm. Dancers must have a strong sense of rhythm in order to properly execute the steps and moves in both styles of dance.
Posture:
Both styles of dance require dancers to maintain good posture while dancing. This is important for several reasons, including maintaining balance, preventing injuries, and creating an aesthetically pleasing appearance.
Interpretation:
In modern dance, dancers often have more freedom to express their own interpretations of the music and choreography. In competitive ballroom dance, dancers may have to execute specific choreographed routines, but they still need to be able to interpret the music and connect with it in order to perform their best.
Performance:
Modern dance and competitive ballroom dance are both performed in front of an audience. Dancers in both styles must be able to project their energy and engage the audience through their performance.