Gabriel Jackson was born in Bermuda in 1962. After three years as a chorister at Canterbury Cathedral, Jackson studied composition at the Royal College of Music, first in the Junior Department with Richard Blackford and later with John Lambert, gaining his BMus in 1983. While at the College he was awarded the R.O. Morris Prize for Composition in 1981 and 1983, and in 1981 he also won the Theodore Holland Award. Since 2010 Jackson has been Associate Composer to the BBC Singers.
He has been shortlisted for a British Composer Award six times winning three times. In 2003 he won in the Liturgical category for his work O Doctor Optime, in 2009 he won in Choral for The Spacious Firmament and in 2012 he won again in the Choral category for Airplane Cantata.
Cantate Domino was written for choir and organ for the Truro Cathedral Choir's 125th anniversary. It had it's premier on the 31st March 2013 at Truro Cathedral performed by the Truro Cathedral Choir.