I didn't realize ELO made use of classical string instruments. Or maybe I forgot.
Quote:In the late 1960s, Roy Wood—guitarist, vocalist and songwriter of the Move—had an idea to form a new band that would use violins, cellos, string basses, horns and woodwinds to give their music a classical sound, taking rock music in the direction to "pick up where the Beatles left off".[16] Jeff Lynne, frontman of fellow Birmingham group the Idle Race, was excited by the concept. In January 1970, when Carl Wayne left the Move, Lynne accepted Wood's second invitation to join the band on the condition that they focus their energy on the new project. On 12 July 1970, when Wood added multiple cellos to a Lynne-penned song intended to be a Move B-side, the new concept became a reality and "10538 Overture" became the first Electric Light Orchestra song.