Irish singer, writer, teacher, theologian, and authority on Gregorian Chant. She is primarily known for spiritual songs, but also sings Celtic music, sean-nós and Indian songs. Nóirín plays an Indian harmonium, shruti box and feadóg. She was Artist-in-Residence for Wexford and Laois. She performs with her sons Eoin and Mícheál Ó Súilleabháin under the name A.M.E.N. and gives workshops about "Sound as a Spiritual Experience"
