is a Greek word for vowels, the sonorous element of speech / sound considered to be the origin of grammar.  Other meanings of the word include:

– fire, air, earth and water, of which the world was thought to be constituted
– elements of the larger cosmos, including sun, moon, planets and stars, and
– spirits, angels and demons which are believed to ensoul the heavenly bodies, traverse all space, and inhabit all of earth, particularly tombs, deserted areas, and demented persons.

(from Mary Daly: Pure Lust)

Stoicheia premièred at Playwrights Workshop Montreal and was recorded by Radio-Canada in 1987.

More about Stoicheia here