Thomas Allery is an organist, harpsichordist and director based in London.

In 2023, Thomas was appointed as Director of Music at Temple Church, London where he directs and trains the professional choirs in a busy programme of services and concerts, regularly working with period orchestras and commissioning works from leading composers. Thomas also leads a choral education and outreach programme for young musicians aged 7 to 21, working to widen access to the English choral tradition.

Having originally trained at the University of Oxford, Thomas subsequently studied organ and harpsichord at the Royal College of Music before pursuing an Artist Diploma in harpsichord at the Guildhall School of Music and Drama. His teachers have included Margaret Phillips, Terence Charlston, Carole Cerasi and James Johnstone. He has held posts at Worcester College, Oxford, St Marylebone Parish Church and Madgalen College, Oxford and he has taught on courses for the RCO and the Jennifer Bate Organ Academy.

Collaboration plays an important part in Thomas' work and he is in demand as a continuo player with a range of ensembles in the field of historical performance and opera. Thomas regularly performs with the orchestra of The Sixteen, and is a founding member of the award-winning period group Ensemble Hesperi, with whom he has toured, recorded and broadcast widely. Hesperi has gained a reputation for its innovative research-led programming, for its pioneering work promoting rarely-heard Scottish eighteenth-century music, and for its dynamic collaborations with guest artists including actors, singers, and dancers.

Thomas is professor of Basso Continuo at the Royal College of Music. Here he with continuo students, helping them to develop fluency in keyboard harmony, stylistic awareness, and chamber music skills, equipping them for a wide variety of roles within the music profession. In his teaching, Thomas draws upon current research in historical music pedagogy, and his own work in this field seeks to shed light on pedagogical approaches of the seventeenth and eighteenth centuries, reshaping these into teaching materials for students today. In his teaching, he is particularly passionate about enabling students to have confidence in developing their own musical voice and expression through the development of a strong practical and technical skillset.