Diane Retallack, Artistic and Executive Director

Celebrated for her passionate leadership, rich imagination and expressive performance, Dr. Diane Retallack has served as Artistic Director for Eugene Concert Choir since 1985, the Eugene Vocal Arts since she founded the chamber ensemble in 1986, and the Eugene Concert Orchestra since 2015.

Read Diane’s full bio here.


Troy DeShazer
Operations Director

Alyssa Morar
Marketing & PR Director

Jill Switzer
ECCO Director & Donor Relations Coordinator

Matt Yuknas
Orchestra Personnel Manager

Christina Lay
Payroll & Reconcilliation

Nathalie Fortin
Piano Accompanist


Troy DeShazer, Operations Director

Responsible for overseeing the day-to-day running of the Eugene Concert Choir and Orchestra, and Eugene Vocal Arts ensemble, Troy DeShazer has served as Director of Operations since fall 2020.

He brings to the job an extensive background in music education, conducting, and chamber music performance.

B.A. in Music (Concentrations in Instruction and Performance), Oregon Center for the Arts at Southern Oregon University.
M.A. in Tuba Performance, University of Redlands, Soutern California.

Artist and performer in the Eugene-Springfield area, Oregon Tuba Ensemble and Eugene Concert Orchestra.



Alyssa Morar, Marketing and PR Director

Thrilled to be a part of the thriving Eugene performing arts community, Alyssa Morar comes to Oregon from Las Vegas Nevada where she ran her own business as a freelance circus performer for the past 12 years.

As a circus artist, she specializes in Aerial Silks, Trapeze and Spinning Cube. She has performed throughout the US and internationally with credits including: A Circus Symphony (Switzerland), Celebrity Cruises (At Sea), Venardos Circus (USA), and prestigious festivals including the Golden Karl International Circus Festival (Latvia) and Jacob's Pillow Dance Festival (USA).In her free time, Alyssa can often be found on the local hiking trails, at dance class, doing pull-ups, or at home cooking something delicious.



Jill Switzer, Music Education Director and Donor Relations Coordinator

While currently maintaining her own private voice studio in Eugene, she is also a proud member of the Eugene Concert Choir and Eugene Opera Chorus. Jill Switzer currently serves as both the Music Education Director and Donor Relations and Recognitions Coordinator.

Bachelor of Music Education, Saint Mary's College, Notre Dame, Indiana. She has worked extensively with children, youth and adult choirs, most notably as Music Director at the Indiana University Newman Center for eight years. While she is classically trained, her performance background also includes musical theater and Latin American folk music.

Her teaching credentials encompass vocal technique and music theory workshops in both English and Spanish.



Matt Yuknas, Orchestra Personnel Manager








Christina Lay, Payroll and Reconciliation

A second-generation Eugenean and graduate of the University of Oregon, Christina has managed to combine her concerns for the community and love of the arts with her bookkeeping skills by working for several nonprofits in the Eugene area, including the Shelton-McMurphey-Johnson House, Lane County Historical Museum, Eugene Opera, Eugene Ballet, The Very Little Theatre, and The Eugene Concert Choir.  When not keeping the books, she writes them. She’s a published author, director of ShadowSpinners Press, and a member of Wordcrafters In Eugene’s Board of Directors.


Nathalie Fortin, Piano Accompanist

Nathalie Fortin was born in Montreal, Canada. She holds degrees from the Conservatoire de Musique de Montréal, Eastman School of Music, and the University of Southern California. Locally, she has performed with the Oregon Bach Festival, Eugene Opera, Eugene Symphony, Chamber Music Amici, Ballet Fantastique, the Oregon Mozart Players, and for a number of productions at the Shedd Institute for the Arts. She currently does collaborative work with Cascadia Chamber Opera, the Eugene Gleemen, Thurston High School, University of Oregon’s School of Music and Dance, and Eugene Vocal Arts.