Christoph Willibald Gluck (1714-1787) was a German composer primarily known for his operas and significant contributions to the genre of opera reform. Active during the transition from the Baroque period to the Classical era, Gluck sought to simplify opera's structure and enhance its emotional expression. He emphasized clarity in music and drama, aiming to make the narrative more coherent and accessible. Notable works include "Orfeo ed Euridice" (1762), which is celebrated for its innovative use of melody and orchestration, and "Alceste" (1767), both of which exemplify his focus on dramatic realism. His opera "Iphigénie en Tauride" (1779) further solidified his reputation in the French operatic tradition. Gluck's impact on music was profound; he influenced later composers such as Mozart and Wagner, advocating for a more integrated relationship between music and libretto. His reforms laid the groundwork for the development of opera in the Classical and Romantic periods, making him a pivotal figure in the evolution of Western classical music.