05/21/2026
Meet the cellist and violist of the Pamina String Quartet:
Roberta Janzen and Theresa Rudolph
Theresa Rudolph joined the Toronto Symphony Orchestra as Assistant Principal Viola in 2011, and is currently Acting Associate Principal Viola. She is also a member of the Santa Fe Opera Orchestra, and began her orchestral career as the youngest member of the Detroit Symphony Orchestra. A passionate chamber musician and recitalist, Theresa has performed at festivals across North America, and appears regularly as a member of the TSO Chamber Soloists.
Theresa was raised in a musical household in Vancouver, BC. She studied at the Vancouver Academy of Music as a student of Gerald Stanick, who inspired her to pursue her passion for the rich, dark sound of the viola. The recipient of a grant from the Canada Council for the Arts, she then obtained her Bachelor of Music Degree from the Cleveland Institute of Music, studying with Robert Vernon. While at CIM, she toured and recorded with the Musicians from Ravinia’s Steans Music Institute, was a prizewinner at the prestigious Fischoff Competition, and performed in Carnegie Hall.
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Winnipeg-born cellist Roberta Janzen joined the Toronto Symphony Orchestra in 2004. A former member of the Canadian Opera Company orchestra, she has also performed as guest principal cellist with Les Violons du Roy, the Manitoba Chamber Orchestra and the Toronto Symphony Orchestra. She has appeared at festivals throughout North America, including Toronto Summer Music Festival, Elora Festival, Tanglewood, Ravinia Steans Institute, Rutgers Summerfest, and the Banff Festival of the Arts.
Roberta is passionate about chamber music. A founding member of the LARK Ensemble, she is a frequent guest artist in chamber music series throughout Toronto, including the Free Concert Series at the Richard Bradshaw Amphitheatre, Aga Khan Pocket Performances, Music Mondays, Hart House and the Arts and Letters Club. She is a keen proponent of new music and has performed with TSO New Creations Players, Soundstreams, and Continuum. Roberta also enjoys presenting classical music in less conventional venues, from the intimate living rooms of Pocket Concerts to the stage of the Dakota Tavern.
PROGRAM:
Dvorak: Piano Quintet #2 in A+ Op.81
Glick: Suite Hebraique #3 for String Quartet
Mozart: String Quartet in Eflat K.428
On Sunday May 31, 3pm.
Syrinx Concerts presents the Pamina String Quartet
with Sheng Cai, piano
Heliconian Hall, 35 Hazelton Avenue, Toronto
Please visit SyrinxConcerts.ca for more information.