Atmosphères is a piece for full orchestra, composed by György Ligeti in 1961. It is noted for eschewing conventional melody and metre in favor of dense sound textures. After Apparitions, it was the second piece Ligeti wrote to exploit what he called a `micropolyphonic` texture. It gained further exposure after being used in Stanley Kubrick`s ...... Found on http://en.wikipedia.org/wiki/Atmosphères
(from the article `counterpoint`) ...of instruments, one around a piano, another around a harpsichord, each with its distinctive tone colours and its own distinctive harmonic ... Found on http://www.britannica.com/eb/a-z/a/120