Collage In music, with the advances on recording technology, avant-garde artists started experimenting with cutting and pasting since the middle of the twentieth century. In the 1960s, George Martin created collages of recordings while producing the records of The Beatles. In 1967 pop artist Peter Blake made the collage for the cover of the Beatles seminal album "Sgt. Pepper's Lonely Hearts Club Band". In the 1970s and 1980s, the likes of Christian Marclay and the group Negativland reappropriated old audio in new ways. By the 1990s and 2000s, with the popularity of the sampler, it became apparent that "musical collages" had
Sgt. Pepper's Lonely Hearts Club Band of Invention has also been cited as having influenced "Sgt. Pepper". According to the author Philip Norman, during the "Sgt. Pepper" recording sessions McCartney repeatedly stated: "This is our "Freak Out!"" The music journalist Chet Flippo states that McCartney was inspired to record a concept album after hearing "Freak Out!" Martin recalled that "Sgt. Pepper" "grew naturally out of "Revolver"", marking "an era of almost continuous technological experimentation". According to Geoff Emerick, the Beatles' recording engineer, the "major difference" between the two albums was that, with "Sgt. Pepper", there was no absolute deadline for completion. Sessions began on 24 November