ツァラトゥストラはこう語った
, Op. 30 (, Thus Spoke Zarathustra or Thus Spake Zarathustra) is a tone poem by Richard Strauss, composed in 1896 and inspired by Friedrich Nietzsche's philosophical 1883-1885 novel "Thus Spoke Zarathustra". The composer conducted its first performance on 27 November 1896 in Frankfurt. A typical performance lasts half an hour.