Theresa McDougall-Oeser is from the USA where she studied both Piano Performance and Instrumental Music Education. After completing her Master of Music in Solo Piano at the Cleveland Institute of Music, she began a degree in Collaborative Piano at Arizona State University with Eckart Sellheim, during which she received a Fulbright Scholarship enabling her to study Opera Coaching at the Mozarteum under the direction of Dr. Josef Wallnig. She then worked as répétiteur at the Salzburg State Theatre and then as vocal coach at Arizona State University. Since the year 2000 she has been a member of the Opera Department at the University Mozarteum in Salzburg and since 2014 a coach in the Mozart Opera Institute.