What gives the dance its life, however, is not its mechanical technique, but understanding and spontaneous use of the rich Afro-Cuban dance vocabulary within a "Casino" dance. In the same way that a "sonero" (lead singer in Son and salsa bands) will "quote" other, older songs in their own, a "casino" dancer will frequently improvise references to other dances, integrating movements, gestures and extended passages from the folkloric and popular heritage. This is particularly true of African descended Cubans. Such improvisations might include extracts of rumba, dances for African deities, the older popular dances such as Cha Cha Chá and Danzon as well as anything the dancer may feel.