Former guitarist and backing vocalist in short-lived American Rock band Franke and the Knockouts.
Former second vocalist in American Progressive Metal/Rock band Dream Theater.
Dominici quickly left Franke Previte's band to join Dream Theater in November 1987, but shortly after the first album release in 1989, he parted ways due to different musical aspirations. He although kept in touch with the band throughout its career, finally joining it time to time for live concert performances.
Founded his own Progressive Metal band Dominici in 2005, releasing a solo three-album concept piece entitled O3: A Trilogy.