About Us

Run by Northern Ireland's top musicians, the Castle Music Service provides high-quality music tuition for all ages and abilities. We tutor singing, piano, organ, theory and composition. We also are experienced in preparing pupils for school exams in primary, post-primary and university level education (BTEC, GCSE, A-Level, IBAC etc.). 

Run by Matthew Geer, a doctoral music researcher and Nigel McClintock, a world-class organist and pianist, we are dedicated to provided personally-tailored tuition to all. Contact us now for your first lesson!

Castle music service tutors


Matt Geer

Theory, composition and exams tutor

Matt Geer is a composer and organist from Hastings, England. His music engages with philosophical questions around how we experience time and how our consciousness fluctuates during a piece of music. Matt is studying for a PhD in music theory and composition at Queen's University Belfast under Simon Mawhinney and Piers Hellawell, where he also teaches. He completed his undergraduate studies in composition on a scholarship at the Guildhall School of Music and Drama under James Weeks and Laurence Crane where he graduated in July 2020. At the Guildhall, he was composer in association with the City Chamber Choir and had his music performed and workshopped by the likes of the BBC singers, EXAUDI, Line Upon Line, Lakeside Brass, musicians from the LPO, the clarinettist Heather Roche and the contemporary pianist Satoko Inoue. He is currently composer-in-residence with the London Baroque Orchestra and the South-East Symphony Orchestra. Matt also has an interest in contemporary organ music. He studied organ through the Royal College of Organists at the University of Sussex under James Lloyd Thomas and under Simon Williams at St George's, Hanover Square.

Visit www.mattgeer.co.uk for more information.


Nigel mcclintock

Piano, organ and singing tutor

Nigel McClintock was born in BelfastNorthern Ireland and studied at Methodist College Belfast. He then moved to London, studying pianoorgan and choral conducting at the Royal College of Music under Nicholas Danby, Patricia Carroll and Paul Spicer. During his studies, he held organ scholarships at Mill Hill School and St Albans Cathedral, where he worked under Barry Rose OBE. Between his undergraduate and postgraduate studies at the Royal College of Music, he worked as director of Music at St George's Parish Church, Belfast. There, he produced numerous recordings of the boy choristers with Lammas Records, which were produced by Barry Rose. After received an MMus in Choral Conducting, he worked as director of music at Croydon Minster from 2000 to 2007.

In 2008, McClintock took up the position of director of music at St Peter's Cathedral, Belfast, leading the newly formed Schola Cantorum. He also became involved in the Charles Wood Summer School, based in Armagh. In 2010, the choir was the subject of a 3-part BBC One TV documentary, following McClintock as he led the choir to sing at St Peter's Basilica in Rome for the Pope.