Complex sentence: It was popularized by The Beatles, who used backward vocals and instrumentation on their 1966 album "Revolver" e technique has also been used to censor words or phrases for "clean" releases of songs.
Split into simpler sentences: It was popularized by The Beatles, who used backward vocals and instrumentation on their 1966 album "Revolver". The technique has also been used to censor words or phrases for "clean" releases of songs.