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
Experimental pop as "[seeming] to have done it all". Martin wrote that, along with the Rolling Stones' "Their Satanic Majesties Request" (1967), the Beatles' "Sgt. Pepper" "opened a space" for experimental pop which would be later filled by Jimi Hendrix, Jethro Tull, and the Who's "Tommy" (1968). Prior to "Sgt. Pepper", Gary Usher and Curt Boettcher were Los Angeles-based songwriters and producers who were interested in classical music and the avant-garde. Later cited as fixtures of sunshine pop, they worked together to create their debut studio album, "Present Tense" (1968). It was credited to Sagittarius, a studio group referred to as an