From the less inhibited night clubs and dance halls the Mambo underwent subtle changes. It was triple mambo, and then peculiar scraping and shuffling sounds during the “tripling” produced the imitative sound of Cha Cha Cha. This then became a dance in itself. Mambo or triple Mambo or Cha Cha as it is now called, is but an advanced stage in interpretive social dancing born of the fusion of progressive American and Latin music.