Issa Sahiel, Jazz Des Jeunes (1941) and Septentrional (1948) started out as salsa, meringue, blues and jazz style bands. Then the Konpa Direct rhythm formed on July 26, 1955 by saxophone players Nemours Jean Baptiste and Weber Sicot. Initial band members included Jean Baptiste, Julien Paul, Edzer Duroseau, Mozard Duroseau, Monfort Jean Baptiste. Sicot and Nemours became the two major powers in the Haitian music history, through the original konpa direct band “Coronto International”.

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In 1956, Sicot left the band to form another Konpa band Latino in 1962 they changed the name to "Kadans Rampa" and in 1969 the band broke up. Nemours would rename Coronto as "Ensemble Au Calbasse", and later as "Ensemble Nemours Jean-Baptiste".  An intense rivalry developed between the two, though they remained good friends. Nemours played a popular, improvised, mambo-influenced style called kompa direct, while Sicot's sophisticated, Cuban-influenced Kadans Rampa was inaccessible to mainstream listeners.