According to "Pitchfork", though Simon & Garfunkel were a highly regarded folk act "distinguished by their intuitive harmonies and Paul Simon's articulate songwriting", they were more conservative than the folk music revivalists of Greenwich Village. By the late 1960s, they had become the "folk establishment ... primarily unthreatening and accessible, which forty years later makes them an ideal gateway act to the weirder, harsher, more complex folkies of the 60s counterculture". However, their later albums explored more ambitious production techniques and incorporated elements of gospel, rock, R&B, and classical, revealing a "voracious musical vocabulary".