Leo Blech (1871–1958) was a prominent German conductor and composer, primarily known for his contributions to opera and orchestral music. He was born in Berlin and studied at the Royal Conservatory there. Blech's career flourished in the early to mid-20th century, and he was associated with several major opera houses, including the Berlin State Opera and the Vienna State Opera. Blech's genre primarily encompassed classical music, with a significant focus on opera, conducting works by composers such as Richard Wagner, Richard Strauss, and Giacomo Puccini. Notable works include his interpretations of Wagner’s "Der Ring des Nibelungen" and Strauss’s "Der Rosenkavalier," which were highly acclaimed for their emotional depth and precision. His impact on music is particularly notable for his role in reviving interest in German opera during a tumultuous period in Europe. Blech also contributed to the development of musical education and mentoring future generations of conductors and musicians. Despite facing challenges due to the rise of the Nazi regime, Blech's legacy endures through his recordings and the influence he had on the operatic landscape of the 20th century.