Revolver (Beatles album) audio miking and automatic double tracking (ADT), in addition to employing musical instrumentation outside of their standard live set-up. Some of the changes in studio practice introduced by "Revolver", particularly ADT, were soon adopted throughout the recording industry. The sessions also produced a non-album single, "Paperback Writer" backed with "Rain", for which the Beatles filmed their first on-location promotional films. In the UK, "Revolver" fourteen tracks were released to radio stations throughout July 1966. In the US, it was the last Beatles album to be subjected to Capitol's policy of altering the band's intended running order and content. The release
The Beatles in India out with the Maharishi engendered a long-lasting suspicion that "they'd become faddists tipped into eccentric habits by unfathomable fame". Having given up touring in 1966, the trip to India was the last time all four Beatles travelled together. Their self-exploration through meditation and before that, LSD, led to each of them adopting a more individual focus, at the expense of band unity, through to the group's break-up in 1970. The acrimony within the band was evident during the recording of their 1968 double album "The Beatles" (also known as the "White Album"), when they recorded many of the songs written