How did Anton Webern develop an individual style apart from Arnold Schoenberg?

Anton Webern developed a distinct musical style by diverging from the late Romantic tradition and the evolving methods of his teacher, Arnold Schoenberg. While he was a key figure in the 12-tone Viennese school, Webern established a unique aesthetic characterized by extreme conciseness and formal rigor.1

His individual style was marked by several key developments:

• Aphoristic Brevity: During his early period, Webern moved away from the expansive forms of the late Romantic era, instead compressing intense expression into brief, "aphoristic" works.1
• Structural Innovation: His music featured melodic and harmonic fragmentation, wide intervallic leaps, and an ascetic sparseness of texture that contrasted with the opulence of his contemporaries.1
• Serial Consistency: After adopting Schoenberg’s 12-tone method in 1924, Webern applied the technique with severe, rigorous consistency, pushing it to its extreme potential in his later instrumental and vocal works.1
• Poetic Sensibility: His compositions were deeply influenced by nature and his own remarkable sensibility, often utilizing highly original instrumental combinations and a pointillistic approach to diction and coloring.1

Through this uncompromising pursuit of a new aesthetic, Webern created a musical syntax that was entirely his own.1