Yuxin Dai is a conductor and collaborative pianist in the San Fransico Bay Area.  She holds Master of Music degrees from Northwestern University and the New England Conservatory of Music and a bachelor’s degree the Shanghai Conservatory of Music in China. Besides leading Collage Vocal Ensemble, she also worked closely with the National Children's Chorus, Young Women's Choral Projects, and San Fransico Girls Chorus. She was recipient of “Female Conductor Award” at the 2025 Cascade Music Festival. Her recent conducting engagements include appearances with the Symphony Tacoma, Spokane Symphony, Baltimore Chamber Orchestra, Hawaii International Music Festival, and the University of Oregon Symphony Orchestra.  She led the CEIBS (China Europe International Business School ) Choir to win a silver medal at the World Choir Games in Tshwane, South Africa in 2018.More info could be found at: https://www.yuxindaiconductor.com

Rafael Ornes is a conductor and organist based in the San Fransisco Bay Area and leads the Stanford Summer Chorus for many years. 

In addition to his work at Stanford, Ornes is best known as the founder of the Choral Public Domain Library (CPDL), one of the world’s most widely used free resources for choral scores. His efforts have significantly expanded global access to public domain choral repertoire.

He has also served as Minister of Music at Valley Presbyterian Church in Portola Valley, California, leading community music programs and choral initiatives.

Amy Stuart Hunn is the founder of Collage Vocal Ensemble. She holds BA and MA degrees in Music from Stanford University, and a DMA in Choral Music from the University of Southern California. She is Emeritus Founding Artistic Director of the Collage Vocal Ensemble (Los Altos, CA), served as director of the Stanford Summer Chorus for eight seasons, and has guest-directed a number of CA Bay Area ensembles including the California Bach Society and the Stanford Symphonic Chorus. In 2016, she relocated to Portland with her family, in search of rain and adventure - both of which she has found in abundance! She currently sings on staff at Trinity Episcopal Cathedral, and has appeared in concert with The Resonance Ensemble, 45th Parallel, In Mulieribus, and The Ensemble of Oregon. She also performs and records with the Oakland-based vocal ensemble Vajra Voices.