Their musical style has varied dramatically with Russell Mael's distinctive wide-ranging voice (in particular his far reaching falsetto) and Ron Mael's intricate and rhythmic keyboard playing style being the common thread throughout their fifty-year career. In the beginning they attempted to emulate the sound of their English idols, such as the Who, Syd Barrett-era Pink Floyd and the Kinks, sometimes even pretending to be an English band while on the LA club circuit. They relocated to England during the glam rock era where, despite cutting an odd figure on this scene, they found success with their polished brand of intricate pop tunes and convoluted lyrics. Early albums such as "Kimono My House" combined glam rock with elements of bubblegum pop and baroque music. By the second half of the decade, they were concerned that the sound they had developed while based in England was in danger of becoming stale; they returned to LA, determined to adopt a more "West Coast" sound. This they achieved with producer Rupert Holmes on "Big Beat" and (sans Holmes) on "Introducing Sparks".