Marianna Petrovich, alto, has performed with the Chamber Singers since 2009.  She received her musical education—instrumental and choral—in Soviet Russia, St. Petersburg, specializing in classical guitar. Marianna immigrated to the US in the 90's as a young girl and converted to Russian Orthodoxy while being in US. She is the mother of eight singing children and is a data architect by day, working for clients such as CBS, Elsevier and Heinz.