Multi-instrumentalist Pieter-Jan Belder conducts his Musica Amphion ensemble from the keyboard. He is also active as a soloist, playing harpsichord, fortepiano, organ, clavichord, and recorder. Belder founded the chamber group Musica Amphion in 1993 and since then has divided his time between that group, his solo career, and teaching at the Sweelinck Conservatory, whose faculty he joined in 1990. In 1994, he made his recording debut, appearing on recorder under Kanjii's baton on the album Georg Philipp Telemann: Baroque Orchestra Concerto '91. With Musica Amphion, he released a complete recording of Telemann's large Tafelmusik chamber music collection. In 2023, he issued a recording of William Byrd's My Lady Nevells Booke; by that time, his recording catalog included well over 200 items.