Iannis Xenakis: Chamber Music, 1955-1990

Of Greek ancestry, born in Romania, a resistance fighter in Greece who suffered a terrible injury to his face including the loss of an eye and an exile in France for over a half-century from the late 1940s until his death in 2001, Iannis Xenakis first became an architect working under the renowned Le Corbusier.  It was not until he was in his Thirties that Xenakis became a composer and, when he did, he shook the so-called classical (serious) music world with his emphasis on mathematical modeling (not unlike Harry Partch and his monophony, Xenakis hearkened back to ancient Greek mathematical musical concepts from the likes of Pythagoras) and computer programming to create some of the most challenging and startling pieces one will ever hear.  His "stochastic" approach involves, perhaps not unlike John Cage's use of the I-Ching, choosing notes randomly through the programming by computer.

For a listener, that challenge includes letting go of the idea that melody is essential to hearing music and for this untutored fan, the key is to take the advice of jazz saxophonist Albert Ayler and his trumpeter brother Donald and try to follow the sound not the notes, while also observing the absolute foundation of music conveyed by Edgard Varése, who suggested that it is simply "organized sound."

This double-disc set issued in 1991 by the German public broadcasting entity, WDR, provides almost all of the composer's smaller ensemble work, and it is beautifully played by the Arditti String Quartet, formed by violinist Irvine Arditti and devoted to modern music as it approaches its 50th anniversary next year, and the late pianist Claude Helffer, also a resistance fighter in his native France during the war.  Notes by Harry Halbreich explain Xenakis' approaches to music and math, the stochastic method of composition and explanations of the fifteen pieces.

Intense and complex as Xenakis' music can be, one of the great virtues of this set is that it provides a good deal of variety as there are the string quartet, including with piano, and string trio pieces, but also solo works for piano, violoncello, viola, and violin.  Even if there are complicated processes like "arborescenses," dealing with melody in a new way; the "sieve," or a mathematical way to select notes from a random selection through computer programming; as well as using "non-octave scales," where scales repeat beyond an octave, letting the sound take you into a world of incredible dynamic range and deep exploration of pitch can be very rewarding and a true ear-opening experience.