Harbour's father had studied music and opera in Vanderbilt University's Peabody College of Education, Tennessee.
In 1990, "Manta Ray" recorded a demo album at the "Dallas Sound Lab" in classic hard 'n' heavy style.
In 1989, David T. Chastain, a guitarist invited Harbour to record bass parts on his instrumental solo album, Within The Heat.
"Chastain's" former drummer, John Luke Hebert, invited Harbour to play with his band King Diamond in 1999, as the bass guitar position was vacant.
Influences evident in the album's music include George Winston, Tori Amos, Peter Gabriel, Kate Bush, Sting, and bands such as "Pink Floyd" and "Rush".
Throughout the CD, the bass guitar contributes an independent melodic line in counterpoint to the piano, rather than just a simple rhythm accompaniment.
After the release of the Ideology CD, Harbour commenced work on Gods of Balance in collaboration with bass guitarist, Michael Manring.
Harbour recorded bass guitar parts for Manring's new composition, Phobos and Deimos at "Castle Zeek Studio" in Austin, Texas.
With an old friend, guitarist Troy Thibodeaux (ex-"Damaged Faith") and drummer April Samuels, Harbour played several club concerts and recorded a demo consisting of four songs in folk-pop-rock genre.
In 2010, he collaborated with Harris, Marco Minnemann drummer, Adam Nitti, Bunny Brunel and James Martin to record the album Tranz-Fused.
Van Halen, Rush, Geddy Lee, Chris Squire, Billy Sheehan, Stuart Hamm, Pink Floyd, Peter Gabriel, George Winston, Tori Amos, Kate Bush, Sting