Georges "Soul" Thomas (guitar) joined shortly thereafter, and Jeff Joseph [fr] eventually replaced JnoBaptiste as lead singer afterwards.
Bolo, Mackie, Soul and Joseph were former students of the Dominica Grammar School, while Tetam and Curvin were from St Mary's Academy, hence the name Gramacks.
With Debs, the band recorded several singles, including "Soukouyant" and "Soliel Tous Chaud", which became hits in the Caribbean.
[1][2] The full-horn section kadans band Exile One led by Gordon Henderson, and Gramacks (led by Jeff Joseph) introduced the newly arrived synthesizers to their music that other young cadence or compas bands from Haiti (mini-jazz) and the French Antilles emulated in the 1970s.
[1] Creative differences and financial mismanagement caused the band to break up with members pursuing individual solo projects.
In 1997, Joseph formed Gramacks New Generation, with greater reggae influence, inviting drummer Charles Laube and keyboardists Ras Tea and Christian Moore.