Brianna Keller is a versatile vocal artist, voice instructor, and music educator originally from the Delaware area. Holding two degrees from the University of Delaware -- a Bachelor of Music in Choral/General Music Education and a Master of Music in Vocal Performance -- she has studied privately under the tutelage of Dr. Blake Smith and Dr. Melanie Dement for voice, Dr. Noëlia L. Archambeault de Hernández for voice science and pedagogy, and Dr. Paul Head for choral conducting.

She has traveled across the globe annually to compete in international choral competitions with the Delaware Choral Scholars. These competitions and festivals have included the International Chamber Choir Competition in Germany in 2025, where the choir received the highest score in the Equal Voices category and the Special Prize of the Bundes-musikverband Chor & Orchester for the best world premiere piece, Interkultur's World Choir Games in New Zealand in 2024, where the choir received four gold metals and three first place champion titles, and the Llangollen International Music Eisteddfod "Choir of the World" competition in the United Kingdom in 2023, where the ensemble won first place in the Open Choirs category and second place in the Mixed Choirs category.

In terms of her soloist performance career, Keller has performed in numerous operatic, musical theatre, and commercial music productions with the University of Delaware Lyric Theatre, including but not limited to: Little Women the Musical (Jo March), Gilbert and Sullivan's Iolanthe (Leila), 9 to 5 the Musical (Judy Bernly), Francesca Caccini’s La liberazione di Ruggiero (Damigelle), and Next to Normal (Natalie Goodman). She has also originated two operatic roles in premiere student-composed micro-opera productions with the Opera: NOW program. Additionally, she served as the Assistant Director and Chorus Master for the company's 2023-2024 season closer, W.A. Mozart’s La Clemenza di Tito.

As an educator, Keller has taught in both the classroom environment as well as one-on-one voice lessons throughout her career. A certified K-12 music educator, Professor Keller has taught on the elementary general music level as well as in the high school choral classroom. Furthermore, she instructed a diverse voice studio of undergraduate students at Delaware, exposing them to repertoire within the realms of musical theatre, contemporary commercial music, and classical music, and previously taught voice lessons to students ages 10-16 through the Community Music School. She is incredibly passionate about student autonomy and agency in the classroom, Social and Emotional Learning, and cross-training to encourage versatility for young performers. She is also a proud eldest daughter of four girls and a proud cat momma to her furbaby, Burger.