This composer created a microtonal metallophone named for the first three letters of his name and the word “six” for use in a percussion sextet with movements titled “Skins” and “Metals.” This composer named a series of pieces after their number of performers, iteration numbers, and the date, leading to titles like ST/48-1,240162. A term for offerings to Chthonic gods titles a technically demanding harpsichord piece by this composer that includes many passages of rapid repetitions of single notes. This composer’s book Formalized Music includes passages of his FORTRAN code for GENDY, a tool he later developed into the computer music program UPIC (“YOO-pick”). An orchestral piece by this composer that uses sound masses produced by 61 musicians, each playing different parts, drew on his training in mathematics and architecture. For 10 points, Khoaï and Metastaseis are pieces by what modernist Greek composer? ■END■
ANSWER: Iannis Xenakis [or Giannis Klearchou Xenakis] (The first line refers to the sixxen.)
<Classical Music>
= Average correct buzz position