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
Cultural impact of the Beatles in avant-garde composers such as Karlheinz Stockhausen and John Cage, similarly informed the recording of "Strawberry Fields Forever" and "Sgt. Pepper". Quoting a composer from the UCLA School of Music, "Time" magazine's appreciation of "Sgt. Pepper" recognised the Beatles as having adopted concepts first pioneered by the Cologne group, thereby making an "enormous contribution to electronic music". The Beatles were the first entertainment act to stage a large stadium concert. At Shea Stadium in New York City on Sunday, 15 August 1965, the group opened their 1965 North American tour to a record audience of 55,600. The event sold out