Abbey Road is the eleventh studio album by English rock band the Beatles, released on 26 September 1969 by Apple Records. The recording sessions for the album were the last in which all four Beatles participated. Although "Let It Be" was the final album that the Beatles completed before the band's dissolution in April 1970, most of the album had been recorded before the "Abbey Road" sessions began. A two-sided hit single from the album, "Something" backed with "Come Together", released in October, topped the Billboard Hot 100 chart in the US. Abbey Road is a rock album that incorporates genres such as blues, pop, and progressive rock, and it makes prominent use of the Moog synthesizer and the Leslie speaker. Side two contains a medley of song fragments edited together to form a single piece. The album was recorded amid a more enjoyable atmosphere than the "Get Back/Let It Be" sessions earlier in the year, but there were still frequent disagreements within the band. John Lennon had privately left the group by the time the album was released and McCartney publicly quit the following year. Abbey Road is widely regarded as one of The Beatles' most tightly constructed albums, although the band was barely operating as a functioning unit at the time. Despite the tensions within the band, Abbey Road was released to near universal acclaim and is considered to be one of the greatest albums of all time. In 2012, Abbey Road was voted 14th on Rolling Stone magazine's list of the "500 Gr