Led Zeppelin returned from a nearly two-year hiatus in 1975 with the double-album Physical Graffiti, their most sprawling and ambitious work. Where Led Zeppelin IV and Houses of the Holy integrated influences on each song, the majority of the tracks on Physical Graffiti are individual stylistic workouts. The highlights are when Zeppelin incorporate influences and stretch out into new stylistic territory, most notably on the tense, Eastern-influenced "Kashmir." "Trampled Underfoot," with John Paul Jones' galloping keyboard, is their best funk-metal workout, while "Houses of the Holy" is their best attempt at pop, and "Down by the Seaside" is the closest they've come to country.