Traditional music in most of the continent is passed down orally (or aurally) and is not written. In Sub-Saharan African music traditions, it frequently relies on percussion instruments of every variety, including xylophones, djembes, drums, and tone-producing instruments such as the mbira or "thumb piano." African music has Juju, Fuji, Highlife, Makossa, Kizomba, Afrobeat and other music. The music and dance of the African diaspora, formed to varying degrees on African musical traditions, include American music and many Caribbean genres, such as calypso (see kaiso), soca and zouk. Latin American music genres such as bomba, conga, son, rumba, salsa, cumbia, samba, were founded on the music of enslaved Africans, and have in turn influenced African popular music. The blues has likely evolved as a fusion of an African bluenote scale with European twelve tone musical instruments.