A transformative force in historically informed performance, Ton Koopman is renowned as a conductor, harpsichordist and organist. In 1979, aged 35, he founded the Amsterdam Baroque Orchestra in the city where he had studied with the great Dutch harpsichordist Gustav Leonhardt. Drawing on an international pool of players, the ensemble soon gained a reputation for flexibility, colour and expressivity as it explored the music of such composers as the Bach family, Handel, Telemann and Buxtehude.