Born to Welsh and Italian parents, Jeremy Llewellyn (Dutch: Loe-ell-in) was brought up in London and received his first musical training in piano, organ and oboe. He studied Music at the University of Cambridge as an organ scholar at Selwyn College which led to international tours, radio broadcasts, CD recordings and a position as Organist at Ealing Abbey, London.
Following research and doctoral studies at the University of Basel and a research appointment at the University of Copenhagen, he joined the management team of the Schola Cantorum Basiliensis in 2007, the internationally renowned institute for historical performance practice. In 2012, he served as Acting Deputy Director.
Llewellyn subsequently worked at the University of Oxford as a Departmental Lecturer and tutor at Exeter College and St Hugh’s College. Since 2019, he has worked at the University of Vienna as Senior Researcher at the Institute of Musicology and, from 2024, as Coordinator of the interdisciplinary Doctoral School of the Faculty of Philological and Cultural Studies. In September 2026 he took up his position as Head of Early Music at the Royal Conservatoire.
His publications focus on music and performance practices from the 9th to the 16th centuries. From 2022 to 2024 he was chair of the International Musicological Society study group cantus planus, promoting new research on global chant. He has also collaborated with the BBC on projects relating to the Viennese composer Marianna von Martines (1744–1812). In terms of research, he has been awarded grants from the Arts and Humanities Research Council, UK (AHRC), Swiss National Science Foundation (SNF), the Leverhulme Trust, the Austrian Science Fund (FWF) and the Thyssen Stiftung, Germany.