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 company another three months to release it. It received considerable negative criticism upon its release—a release which RCA, anxious to maintain the established commercial momentum, did not welcome, and which Bowie's ex-manager, Tony Defries, who still maintained a significant financial interest in the singer's affairs, tried to prevent. Despite these forebodings, "Low" yielded the UK number three single "Sound and Vision", and its own performance surpassed that of "Station to Station" in the UK chart, where it reached number two. Echoing "Low"s minimalist, instrumental approach, the second of the trilogy, ""Heroes"" (1977), incorporated pop and rock to a greater extent,