The evolution of Congolese popular music in the 1960s and 70s is generally classified into two major schools: African Jazz & OK Jazz. The main representatives of those schools are Joseph Kabasele alias Grand Kallé, founder of African Jazz, and Franco Luambo, co-founder of O.K. Jazz. Two temperaments and ambiances, one commonly referred to as ‘fiesta’, the other as ‘odemba’, both seeking their own sublimity or ideal.

For the very first time, a compilation brings together explicitly the main protagonists of the two bands on the same album, with a collection of their songs recorded in the early sixties for the Surboum African Jazz label, in addition to three tracks made by Kallé’s bands in the late sixties.