April 2025
New three day workshop with five tutors studying the Music in Geometry and the Geometry in Music
A three-day course held over four days in Dartington, Totnes, Devon with
Dean Brodrick, Tom Bree, Adam Tetlow, Sandra Smith and Amanda Critchlow
18th – 21st September 2025
In the four studies of the Quadrivium - arithmetic, geometry, astronomy, and music - we are offered the opportunity to experience, integrate and reflect upon the timeless, that is, to explore qualities that have true universality; qualities that do not belong to any one time or place but can find a place in the heart of any human being at anytime and anywhere. We will be looking at both the Music and Geometry components of the Quadrivium.
The course will be an embodied understanding of the sacred and geometrical properties and principles of music and resonance, including through singing, drumming, dancing, contemplating the music of the spheres, working with the tetractys, bellringing, drawing and so forth. In this workshop we will build a monochord to take home with us.
The cost for the three days will be £285 and includes all tuition and light refreshments.
There will also be the opportunity to purchase Kairos publications and worksheets designed for self-study. These were created or endorsed by Professor Keith Critchlow founding member of Kairos and Director of Studies until his passing. Four of the tutors are past students of KC.
If you are interested in joining us and would like more information or to book your place, please email
Amanda J. Critchlow: Kairos.charity@gmail.com
Course Tutors:
Tom Bree is a Geometer-Artist, Teacher, and Writer. He studied geometry and its accompanying philosophy at the Prince’s School of Traditional Arts (now the King’s Foundation School of Traditional Arts) under the renowned Master-Geometer Professor Keith Critchlow. Since 2008 Tom has been teaching geometry drawing and philosophy at The Prince’s School as well as for many other organisations and institutions both in the UK and abroad. He recently published 12 years of ground-breaking research concerning the use of the Quadrivial arts in Gothic cathedral design along with the learned 12th century climate of Cosmic-Platonism that gave birth to them. This new book by Tom is called “The Cosmos in Stone – Sacred geometry of a master mason”.
Dean Brodrick: is an artist, educator, musician and composer. He studied Fine Art painting at Wimbledon School of Art in the late 70s where he first met Keith Critchlow and continued studying Sacred Geometry and the Liberal Arts under his tutelage at the Royal College of Art in London. He has worked with musicians from all parts of the world and travelled extensively. He co-founded 4 small education projects in the West of England putting music and arts at the core of the curriculum. Since 1993 he has been devoted to a syncretic spiritual practice emerging from the Brazilian Amazon.
Adam Tetlow is an Artist, Author and Teacher focusing on the intersection of number, traditional art and philosophy. He studied under Keith Critchlow and Paul Marchant at the Princes School (now the King’s Foundation School of Traditional Arts) from 2001-2003 and has, since 2011, been a student of John Neal. He is the author of Celtic Pattern (2012), The Diagram (2021) and Ancient Metrology (forthcoming 2025), As well as contributor to Quadrivium (2010) and Designa (2013). He teaches regularly for SAOG and the King’s Foundation School as well as online classes available at www.instagram.com/adamtetlowteacher He lives in rural Essex with his wife and children.
Sandra Smith: trained as a painter at the Royal College of Art. She leads the short course and summer school programme at the Slade school of Fine Art, UCL, and works with outreach initiatives. Her work as an artist/educator seeks an integral approach to art education in designing curriculums and peripatetic tuition. She works at a range of institutions in the UK, with diverse groups of learners including school children, art, architectural, engineering and medical students as well as the general public. She studied with Keith Critchlow and worked with Amanda for Kairos, on and off, for many years. Sandra will be leading a workshop using a body scale diagram as a hands-on template that relates the body to proportions used in painting compositions, as a springboard to explore number, 2d space, rhythm, materials, tools and imagination.
Amanda J. Critchlow: is Keith’s middle daughter, who has been running Kairos for the last 40 years, with Keith up until he died 5 years ago, involved with all aspects of its output. A textile artist and experienced tutor Amanda now works for the King’s Foundation School of Traditional Arts, in AlUla Saudi Arabia, as Production Manager and teacher of felt making and natural dyeing. Using Keith’s direct teachings, she will be leading a 2D geometry class to gently inspire the sacred in sacred geometry while creating an 8-fold/octave pattern. A pair of compasses is considered a sacred tool embodied with meaning and potential. To understand what Sacred Geometry means one needs to do it.