Electric Light Orchestra: Eldorado, A Symphony by The Electric Light Orchestra Num Ltd

LP Record On ELO's fourth album, Lynne made an important innovation. "Eldorado" is the first album for which Jeff Lynne hired an orchestra; on previous albums, Lynne had added strings by overdubbing. Lynne hired string arranger Louis Clark and used a full orchestra for the band's recordings. This approach immediately paid off with the ambitious album Eldorado in September 1974, which increased the band's worldwide popularity and perfected the approach that would bear fruit in the coming years.