Trilogy and "The Apu Trilogy" of films by Satyajit Ray. Others are connected only by theme: for example, each film of Krzysztof Kieślowski's "Three Colors" trilogy explores one of the political ideals of the French Republic (liberty, equality, fraternity). Trilogies can also be connected in less obvious ways, such as "The Nova Trilogy" of novels by William S. Burroughs, each written using cut-up technique. The term is less often applied to music, such as the "Berlin Trilogy" of David Bowie which is linked together by musical sound and lyrical themes, all having been recorded at least partly in Berlin, Germany. The
The Who a mini rock opera called "Rael", and "I Can See For Miles". The Who declared themselves a pop art group and thus viewed advertising as an artform; they recorded a wide variety of radio advertisements, such as for canned milkshakes and the American Cancer Society, in defiance of the rising anti-consumerist ethos of the hippie counterculture. Townshend stated, "We don't change offstage. We live pop art." Later that year, Lambert and Stamp formed a record label, Track Records, with distribution by Polydor. As well as signing Hendrix, Track became the imprint for all the Who's UK output until the mid-1970s.