In 2015, Hart joined the ensemble of the Landestheater Detmold in North Rhine-Westphalia, Germany. In 2016 Hart returned to the role of the woman in La voix humaine in an all female production, staged by Karin Kotzbauer, conducted by Sachie Mallet, in set and costumes by Tatiana Tarwitz, and with dramaturge Elizabeth Wirtz. In 2018, Hart appeared as Tosca for the first time. The production was well received by critics and audience. Two awards Detmolder Theaterring were bestowed, for best direction to Ernö Weil, and for best singer to Hart.
Hart received her Bachelor of Music and Master of Music degrees from the Oberlin Conservatory of Music, where she was a student of Richard Miller. She received a Professional Studies Certificate (PS) from Manhattan School of Music, where she studied with Mignon Dunn. In 2006 she attended a master class by Marilyn Horne. She was a participant in Seattle Opera’s Young Artist program from 2007 to 2010. In 2010 Hart again studied with Marilyn Horne, at the Music Academy of the West, where she won the Marilyn Horne Song Competition. Horne has since remained Hart's teacher.
Richard Miller (April 9, 1926 – May 5, 2009) was a professor of singing at Oberlin College Conservatory of Music and the author of numerous books on singing technique and vocal pedagogy. He also sang recitals, oratorios, and numerous roles as a lyric tenor with major opera companies in Europe and America.
From 1997 to 2018 Horne directed the Voice Program at the Music Academy of the West in Santa Barbara, California. Since 2018 she holds the position of Honorary Voice Program Director. In this position she will continue to teach and remain the head of the jury for the Marilyn Horne Song Competition.