Arturo Toscanini was an Italian conductor. He was one of the most acclaimed musicians of the late 19th and of the 20th century, renowned for his intensity, his perfectionism, his ear for orchestral detail and sonority, and his photographic memory. He was at various times the music director of La Scala Milan, the Metropolitan Opera in New York, and the New York Philharmonic Orchestra. Later in his career he was appointed the first music director of the NBC Symphony Orchestra, and this led to his becoming a household name through his radio and television broadcasts and many recordings of the operatic and symphonic repertoire.

https://en.wikipedia.org/wiki/Arturo_Toscanini