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
Berlin Trilogy on the album started before Bowie's own "Low", Pop's "The Idiot" is often referred to as the unofficial beginning of Bowie's Berlin period, though the two albums were recorded almost concurrently. The album "Low" (1977) was recorded as Bowie grappled with difficult personal issues, including a troubled marriage and drug dependence: "There's oodles of pain in the "Low" album. That was my first attempt to kick cocaine, so that was an awful lot of pain. And I moved to Berlin to do it. I moved out of the coke centre of the world ["i.e.", Los Angeles] into the smack centre