In many styles of salsa dancing, as a dancer shifts their weight by stepping, the upper body remains level and nearly unaffected by the weight changes. Weight shifts cause the hips to move. Arm and shoulder movements are also incorporated. Salsa generally uses music ranging from about 150 bpm (beats per minute) to around 250 bpm, although most dancing is done to music somewhere between 160–220 bpm. The basic Salsa dance rhythm consists of taking three steps for every four beats of music. The odd number of steps creates the syncopation inherent to Salsa dancing and ensures that it takes 8 beats of music to loop back to a new sequence of steps.