In the 1920s, Wilhelm Furtwängler, Erich Kleiber, Otto Klemperer, Alexander von Zemlinsky, Bruno Walter
ɪ n ð ə WORD_BOUNDARY n aɪ n t iː n h ʌ n d ɹ ɪ d WORD_BOUNDARY t w ɛ n t i WORD_BOUNDARY z WORD_BOUNDARY w ɪ l h ɛ l m WORD_BOUNDARY f ɜː t w ɛ ŋ ɡ l ə ɹ ɹ WORD_BOUNDARY ɛ ɹ ɪ t̠ʃ WORD_BOUNDARY k l eɪ b ə ɹ ɹ WORD_BOUNDARY ɑ t oʊ WORD_BOUNDARY k l ɛ m p ə ɹ ɹ ə ɹ ɹ WORD_BOUNDARY æ l ɪ ɡ z æ n d ə ɹ WORD_BOUNDARY v ɑ n WORD_BOUNDARY z ɛ m l ɪ n s k i WORD_BOUNDARY b ɹ uː n oʊ WORD_BOUNDARY w ɔ l t ə ɹ WORD_BOUNDARY