A 1959 dance book describes Rock n’ Roll as performed without undue tension, the body and legs being flexible so that there may be a physical rhythmic expression of co-ordination with the beats of music. A dance that leaves much scope for personal expression and interpretation in style, movement, rhythm, and even in the manner in which the figures are constructed. Requires a level of dedication and understanding in order to sucessfull execute routines with good technique and style.