What composer's work veered away from sounding conventionally beautiful and instead strove to capture pain itself?

The composer whose work often departed from conventional beauty to express pain is Arnold Schoenberg. His exploration of atonality and expressionism aimed to convey deep emotional experiences, including anguish and despair. This approach is particularly evident in pieces like "Pierrot Lunaire," where dissonance and unconventional melodies reflect tumultuous human feelings. Schoenberg's innovative style challenged traditional notions of beauty in music, instead focusing on the rawness of emotion.