Combining Beatles-esque pop with soaring symphonics in the early '70s and beyond, ELO's potent mix of strings, synths and classic rock ‘n' roll is a dazzling thing to behold. Their orchestral approach to “Roll Over Beethoven” gave an old song new life, while “Rockaria!” is nothing less than a bold rock opera condensed into just a few thrilling minutes. With leader Jeff Lynne matching winning melodies to his gleaming arena rock production, these songs alternately glide on slithering string arrangements (“Livin' Thing”) or ride a churning rock drive that won't quit (“Don't Bring Me Down”).