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
Kabir Suman's recorded albums political album. It contained only 8 songs, and all songs were accompanied by a simple guitar. No other instruments used. It was his first Bengali album, which he recorded entirely with guitar, without any other musicians. This album was remarkable because, it was his first album after he became an MP. The main theme of this album was the forest area at western West Bengal, its people, their political situation, and some reasonless harassment from central government. During that time, Chhatradhar Mahato was arrested and imprisoned, joint paramilitary force was posted in that area, and they started harassing common people