Quartetto Mosso – The All-American Program at 52 Sumner

Ronald Gorevic

Ronald Gorevic has had a long and distinguished career as a performer and teacher on both the violin and viola. As a violist, he has been a member of several well known string quartets over a twenty year period, during which he covered most of the quartet repertoire. He has toured throughout the US, Germany, Japan, Korea, and Australia and has been broadcast on radio stations across the US, South and Southwest German radio, and the Australian Broadcast network. As a violinist he has performed recitals in major US cities, including New York, Cleveland, Chicago, and Atlanta. He is currently on the faculties of Smith College and University of Massachusetts, Amherst.

Beth Welty

Violinist Beth Welty received her Bachelor’s and Master's degrees in violin performance from Indiana University, where she was a student of Yuval Yaron. She has performed with numerous groups in the Boston area and abroad. Beth is the acting Principal Second Violin with the Springfield (MA) Symphony Orchestra, Principal Second Violin with the New Hampshire Philharmonic, and has served as Concertmaster of the Nashua Chamber Orchestra since 2005. An avid chamber musician, Beth is a founding member of the Kaleidoscope Chamber Ensemble and was also a founding member of the Boston Quartet. She maintains a private teaching studio at her home in Waltham, and is a teacher at the Upbeat NH Strings program in Nashua, NH. Beth is currently Chair of MOSSO.

Delores Thayer

Delores (Loree) Thayer, violist, is the Assistant Principal Violist of the Springfield Symphony Orchestra. She plays regularly with the Hartford Symphony, various Boston groups, and at other venues throughout the New England area as violist and Baroque violist. She has performed with the Arcadia Players Early Music Group and the Wistaria String Quartet, and most recently served on the viola faculty at Amherst College and the Northfield Mount Hermon School. Delores’ performances have taken her to the summer music festivals in Ayamonte and Santander, Spain; Spoleto, Italy; Tanglewood; and the Yale Norfolk Music Festival. In addition, Delores has performed at the Five College New Music Festival, Alice Tully Hall, and the Kennedy Center.

Yoonhee Ko

Cellist Yoonhee Ko flourishes in a versatile career as a soloist, chamber musician, member of long established professional orchestras, and music educator. Yoonhee has performed at many world-renowned venues, including Carnegie Hall, the Kennedy Center for the Performing Arts, Andrew W. Mellon Auditorium, and Boston Symphony Hall in the US, as well as Seoul Arts Center and Sejong Center for the Performing Arts in Korea. She holds a Doctorate of Musical Arts from Boston University, a Master of Music degree and Artist Diploma from the Yale School of Music, and a Bachelor of Music degree from Ewha Womans University. Yoonhee joined the Hartford Symphony and Springfield Symphony Orchestra in 2019. She is a faculty member of the Community Music School of Springfield and serves as Coordinator for the Sonido Musica Program, a community partnership that helps provide music education to public schools in Springfield and Holyoke, MA.