Clare, our choir director sent me this, it is from a list of workshops for liturgical musicians:
PLAY IN THE MYSTERY: DRUM AND CHANT Philip Roderick. Improvise with the divine in the mystery of creation; rekindle the body and spirit through percussion and song. Bring cardboard boxes, rattles, shakers, yourselves into this simple but profound soundspace. Philip will facilitate improvisational chant and play the cardboard box, the djembe and the extraordinary and ambient Hang Drum. Philip Roderick is an Anglican priest, founder-Director of The Quiet Garden Movement and leader of Contemplative Fire - a 'fresh expression of Church'. http://www.contemplativefire.org/
It is actually happening at a Catholic venue, but nothing on chant, strangely.