What is the masterpiece of Arnold schoenberg?

It's difficult to pinpoint ONE single masterpiece by Arnold Schoenberg. He is known for his revolutionary contributions to music, particularly his development of the twelve-tone technique. Here are some of his most important works, each considered a masterpiece in its own right:

* Pierrot Lunaire (1912): A song cycle for voice and chamber ensemble, considered a landmark work of musical Expressionism. Its unconventional musical language and unsettling subject matter continue to fascinate audiences.

* String Quartet No. 2 in D minor, Op. 10 (1908): A highly personal and emotionally charged work, which reflects Schoenberg's growing interest in atonality.

* Verklärte Nacht (Transfigured Night), Op. 4 (1899): An early masterpiece, showcasing Schoenberg's mastery of romanticism and late-Romantic harmony.

* Moses und Aron (1932-1952): An unfinished opera, a complex and powerful work about the tension between faith and reason. It's a monumental piece of music with intense symbolism and philosophical depth.

* Variations on a Recitative, Op. 40 (1936): A set of variations for orchestra, showcasing Schoenberg's mastery of the twelve-tone technique.

* Ode to Napoleon (1942): A powerful and dramatic piece for chorus and orchestra, exploring the rise and fall of Napoleon Bonaparte.

Ultimately, the "masterpiece" of Schoenberg is a matter of personal preference. Each of these works demonstrates his genius and influence on the course of 20th-century music.