Pink Floyd's spacey visions ripple across modern music. The iridescent melancholy in Radiohead's “Subterranean Homesick Alien” leans on Floyd's moody drift, and the childlike wonder bubbling out of The Flaming Lips' psych pop ditty “The Spark That Bled” recalls Syd Barrett. They've also shaped electronic music, especially the celestial haze oozing from The Orb's classic ambient house sides.