At age 13, Morris was commissioned by his school to compose a piece for his graduating class to perform in honor of the Pope John Paul II's visit to Canada.
Beloved Young People, a book authored by the Pope aimed at the youth of the generation became the source for adapted lyrics, and Trevor's senior class performed his composition for Piano and 4-part Choir at St. Mary's cathedral at graduation.
During his early years in Los Angeles, Morris worked with famous score composers, James Newton Howard and Hans Zimmer.
As part of Zimmer's team, Morris amassed over 25 major screen credits on some of Hollywood's block busters.
As Morris' own career in composition developed, so did the opportunity to directly collaborate with others such as Jerry Bruckheimer, Neil Jordan and Tony and Ridley Scott.