In the grand, color-bending tradition of psychedelic experimentalism, Pink Floyd´s Atom Heart Mother takes as its title an inscrutable phrase and under the title launches a similarly inscrutable--or at least dense--musical concatenation. The title suite features French-horn-led brass melodies riffed on by David Gilmour´s guitar and the rhythm section, all of which veers into choral passages that recall Gy?rgy Ligeti´s vocal works and then almost atonal pulses of keyboards that mask reams of audio snippets swirling underneath. And then there´s some moody folk from Roger Waters, an almost Kinks-ish rambler from Richard Wright, then more moody folk (this time from Gilmour) on Fat Old Sun, and, to close, the spirited melodic runaround of Alan´s Psychedelic Breakfast. There´s a range of emotion here, from doleful to crazed to humorous (especially the dramatized comments on macrobiotics in the closer). Atom Heart Mother was a spotlight ahead for Pink Floyd, showing the extensions of form the band would engage in so successfully on Dark Side of the Moon just a few short years later.