While the lower limbs complete quick, explosive, and intricate movement, the torso and arms must remain steady yet relaxed. The core muscles must be powerful and regulated in order to achieve and maintain proper posture. Tap dancers, for example, shift their legs and feet quickly while keeping their pelvis balanced.
Film music can convey many emotions and settings, sadness and happiness, a rural countryside or a dark forest. Anything. Hope this helps in some way :)
