 The lively "cavacha", a dance craze that swept East and Central Africa during the seventies, was popularized through recordings of bands such as Zaiko Langa Langa and Orchestra Shama Shama, influencing Kenyan musicians.This rhythm, played on the snare drum or hi-hat, quickly became a hallmark of the Congolese sound in Nairobi and is frequently used by many of the regional bands.Several of Nairobi's renowned Swahili rumba bands formed around Tanzanian groups like Simba Wanyika and their offshoots, Les Wanyika and Super Wanyika Stars.