It is sometimes called Swahili jazz because most dansi lyrics are in Swahili, and "jazz" is an umbrella term used in Central and Eastern Africa to refer to soukous, highlife, and other dance music and big band genres.
This craze brought along dance clubs, especially in major cities like Nairobi and Dar es Salaam, where bands would play live 7 days a week.
Composers like Muhiddin Maalin and Hassani Bitchuka wrote hit songs for virtually all the major bands of their times.
Music festivals were usually in the form of contests, and each band typically had its own fan base, much in the venue of sporting teams.
Mitindo were usually associated with, and often named after, some specific dancing style; for example, the name of Orchestra Maquis' mtindo ogelea piga mbizi means "dive and swim", as dancers were supposed to move their arms like they were diving.
The sound of most recent dansi bands like Gari Kubwa, Tokyo Ngma and Atomic Advantage is actually keyboard-based.