Gustav Mahler (1860–1911) was an Austrian composer and conductor whose symphonies and orchestral song cycles stand as monumental achievements in Western music. Born to a Jewish family in Bohemia, Mahler rose through the ranks of European opera houses to become one of the most respected conductors of his time, holding posts in Vienna, Budapest, and New York. His music—particularly his nine symphonies—combines sweeping orchestral grandeur with intense personal reflection, often grappling with themes of love, death, spirituality, and existential struggle. Works like Symphony No. 2 “Resurrection”, Symphony No. 5, and Das Lied von der Erde (The Song of the Earth) reflect his lifelong search for meaning in a turbulent world. Though controversial in his lifetime, Mahler’s reputation grew exponentially after his death, with his emotionally expansive and structurally innovative works influencing composers from Shostakovich to Bernstein. Today, Mahler is seen as a visionary who bridged the Romantic and modern eras with emotional honesty and sonic ambition.