While the common denominators of passion and fervor never waiver, there is no one single flamenco dance. In fact, depending on the criteria of mood intention, the set of melodic phrases and the cultural traditions behind each song, flamenco dance actually manifests itself in more than 50 distinct palos (types of flamenco dance)! Both flamenco music and flamenco dance involve a great deal of personal improvisation which takes its form through the spontanteous expression of the performer's emotions at each moment of the performance. However, personal expression must adhere to the strict framework of flamenco music's traditions and rhythmic patterns.