"Angst" is an original composition by pianist Brad Mehldau, first recorded for his 1995 debut album Introducing Brad Mehldau on Warner Records. Cast in a 60-bar AABA form, the piece reflects the introspective, emotionally searching quality that defined Mehldau's early writing. The melody is lyrical and deliberately paced, unfolding over harmonies that blend post-bop jazz language with the kind of Romantic sensibility Mehldau was absorbing from literature and classical music during this period. The title itself, the German word for dread or anxiety, fits alongside other compositions on the album that draw on German Romantic themes, including the Goethe-inspired "Young Werther." Structurally, the extended AABA form gives soloists ample room for development while maintaining a clear narrative arc. The bridge provides harmonic contrast that heightens the tension implied by the title before resolving back into the main theme. Mehldau composed the piece during his early years as a bandleader, shortly after his tenure in Joshua Redman's group, and it served as one of several originals on the debut album that established his voice as both a composer and improviser. "Angst" remains a deep cut in Mehldau's catalog rather than a widely performed jazz standard, and it has not been widely adopted by other musicians. Its significance lies in documenting the earliest phase of Mehldau's compositional identity within the piano trio format.