Stimmen... Verstummen... (Russian Слышу... Умолкло..., English Voices...
Silence...) is a symphony in twelve movements by Russian-Tatar composer Sofia Gubaidulina.
It was written in 1986[1] and dedicated to the conductor Gennady Rozhdestvensky, who gave the first performance in West Berlin with the Moscow State Symphony Orchestra on September 4, 1986.
The second theme, that of "effort and ruin", occurs in the second, fourth, and sixth movement.
Movements I, III, V, and VII become progressively shorter according to the proportions of the Fibonacci sequence.