A 1970s musical group from Dominica. The band was started in West coast town of St. Joseph. The lead singer Jefferson "Jeff" Joseph and keyboard player McDonald "Markie" Prosper along with the other members were former students of the Dominica Grammar School and St Mary's Academy, hence the name Grammacks. The Grammacks along with Exile One were the originators of 1970s phenomenon, Cadence music. An up-tempo form of calypso sang mostly in Antillean Creole and French. This later inspired Zouk music popularized by Kassav in the 1980s.
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