Milan Sachs conducted the premiere of the play Jenůfa by the composer who was inspired by what types of music?
Milan Sachs: Milan Sachs (28 November 18844 August 1968) was a Czech-Croatian opera conductor and composer, who was long associated with the Zagreb Opera in Croatia, where he conducted some important local premieres, including Wagner's "Parsifal", and Janáček's "Jenůfa" (1920). Leoš Janáček:  He was inspired by Moravian and other Slavic folk music to create an original, modern musical style.
Moravian and other Slavic folk music