Categories News Quantum Mechanic Post author By Bettina Smith Post date November 13, 2018 In July 2013, Bettina performed the main role “Mrs. Schroedinger” in the opera “Quantum Mechanic” by American composer John Bilotta and librettist John McGrew at the Fresh Voices Festival in San Francisco, USA. → Autumn 2013 : New CD “Profiles of Women”