Ruth Cunningham
Encyclopedia
Ruth Cunningham is a classically trained musician and a sound healing practitioner. She was a founder member of Anonymous 4
Anonymous 4
Anonymous 4 is a female a cappella quartet, based in New York City. Their main performance genre is medieval music, although they have also premiered works by living composers such as John Tavener and Steve Reich...

and specializes in improvisational sacred music in liturgical and concert settings.
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