The course was extremely successful, and we all learnt a huge amount from Colin Mawby's experience of singing and directing chant, which goes back to the 1940s, and his great sensitivity to it. He demonstrated in a quite remarkable way how small changes to tempo and emphasis can make a piece of chant sound quite different, and how groups of singers can respond to interpretative suggestions.
Colin Mawby is well known as a composer, and was Director of Music at Westminster Cathedral in the 1960s. For more on the course, see the Gregorian Chant Network.