Pianist and composer Kit Armstrong is unusual in that he is frequently active in both those activities. Armstrong made his debut at eight with the Long Beach Bach Festival Orchestra, and he has appeared as a concerto soloist with top orchestras in Europe, the U.S., and Asia. Armstrong is also an avid chamber music player and vocal accompanist. In 2012, Armstrong purchased the Church of Sainte-Thérèse-de-l'Enfant-Jésus, Hirson, in France, transforming it into a performance venue. Armstrong has composed a symphony, five piano concertos, solo piano music, and a variety of chamber music. His works have been performed by various first-rank ensembles, including the Akademie für Alte Musik Berlin, which premiered his fortepiano concerto in 2015. In 2021, Armstrong issued William Byrd, John Bull: Visionaries of Piano Music.