Pulitzer and Erasmus Prize-winning composer John Adams occupies a unique position in the world of American music. His works stand out among contemporary classical compositions for their depth of expression, brilliance of sound, and the profoundly humanist nature of their themes. Adams describes My Father Knew Charles Ives as an homage and encomium to a composer whose influence on me has been huge. Harmonielehre was a deliberate move by Adams to expand his musical language beyond Minimalism, keeping its energetic pulse but embracing the rich tonal resources of the past to create a work that has accrued an aura of timelessness.