After working as a deejay on several Kingston sound systems, he made his debut recording in March 1976 with "Set Up Yourself" for producer Joseph Hoo Kim.
[1] "Words of The Prophet" followed for Yabby You, who also produced his debut album, Shanty Town Determination, which was re-released on Steve Barrow's Blood and Fire (record label) in 2000, replete with extended Rockers discomixes.
1977 saw the deejay in great demand, recording more than 20 singles for a variety of producers, including Winston Riley, Tommy Cowan, Joe Gibbs, and Yabby You, his biggest hit coming with "Three Piece Suit" for Gibbs, featuring Trinity toasting over a new version of Alton Ellis's "I'm Still In Love With You" riddim, with a lyric that anticipated the move from 'cultural' lyrics to more material/carnal concerns of the dancehall era.
[1] Trinity's younger brother, Robert Brammer, also had a successful career as a deejay, recording under the name Clint Eastwood.
Trinity died on 9 April 2021, at the National Chest Hospital in Saint Andrew Parish, Jamaica, at the age of 67 of complications from diabetes.