Prosper is an original composition by alto saxophonist Justin Chart, featured on his 2024 album Born of The Horn. Chart is a Los Angeles-based jazz musician whose discography spans multiple releases including ART, Night Heat, Today's Tomorrow, and The Midnight People, all centering on his melodic alto saxophone voice within hard bop and post-bop settings. As the title track of his earlier album Prosper, this composition has remained a key piece in Chart's repertoire, carrying forward onto Born of The Horn with a quintet featuring trumpeter Mike Rocha, keyboardist Mike Saul, bassist Bill Markus, and drummer Danny Beallo. The tune is characterized by its elegant blend of mood and melody, evoking a nocturnal, speakeasy atmosphere through swinging grooves and inventive riffs. Reviews have praised its capacity to balance sophisticated harmonic sensibility with accessible swing, creating music that feels both intimate and energized. The composition emphasizes melodic invention and rhythmic buoyancy, providing a strong framework for improvisation. On the Born of The Horn recording, Chart takes two alto saxophone solos, while Rocha contributes a trumpet solo and Markus delivers an acoustic bass solo, each bringing distinct character to the performance. The tune remains exclusive to Chart's own recordings, representing his optimistic, human-centered approach to contemporary jazz.