For 10 points, name this composer who used 52 string instruments to produce massive tone clusters in his Threnody to the Victims of Hiroshima.
This composer wrote a passacaglia movement based on an incessantly repeating D in the bass, which shifts to F at the movement's climax. That passacaglia, adapted from this composer's earlier Passacaglia and Rondo, is the fourth movement of his third symphony. This composer's fifth symphony contains a four-bar theme using only the notes B-flat, F, and C, which he adapted from a Korean folksong. A loud D-major triad occurs on the word "gloria" in an otherwise atonal setting of the Stabat Mater that appears in one of this composer's sacred works, and that work also ends unexpectedly with a tutti E-major triad. His second symphony gets its nickname from its extensive quotation of (*) "Silent Night." He based one work on visual pitch notation derived from actual electroencephalograms. This composer of a "Christmas" Symphony and Polymorphia also wrote a piece originally titled 8'37". For 10 points, name this composer who used 52 string instruments to produce massive tone clusters in his Threnody to the Victims of Hiroshima.
This composer wrote a passacaglia movement based on an incessantly repeating D in the bass, which shifts to F at the movement's climax.
Krzysztof Eugeniusz Penderecki