Iannis Xenakis Metastasis ( Spectral View)
Metastasis or Metastaseis ( dialectic transformations ), is an orchestral work by Iannis Xenakis, a Greek composerarchitect and a major figure in the postwar development of musical modernism worldwide. He is particularly remembered for the pioneering use of stochastic mathematical techniques in his compositions, including probability (MaxwellBoltzmann kinetic theory of gases, aleatory distribution of points on a plane, minimal constraints, Gaussian distribution, Markov chains), game theory, group theory, Boolean algebra and Brownian motion. Metastasis was inspired by Einstein s view of time (a function of matter energy) and structured on mathematical ideas by Xenakis s colleague Le Corbusier. The 1st and 3rd movements don t have a melodic theme to hold them together, but rather depend on the strength of this conceptualization of time. The 2nd movement does have some sort of melodic element. A fragment of a 12tone row is used, with durations based on the Fibonacci seque
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