
The Technique Vault is a living archive of Julia Radosz’s technical work—featuring over 65 longform videos and new uploads every month. Designed for singers who want to understand, not imitate.
The Technique Vault is Julia Radosz’s complete collection of in-depth, longform technical training videos.
With over 65 videos already available and new content added every month, it offers an unparalleled look into the process of building a free, powerful, and flexible classical voice.
Each video explores a specific aspect of vocal function, drawn from nearly two decades of technical research and professional performance experience.

Explore categories such as:

Balancing mechanism and resonance

Coordination, anchoring, and acoustic tuning

Resonance
Shaping, vowel strategy, and overtone awareness

Tongue, jaw, and vowel management

Advanced coordination work (distinct from The Myofunctional Singer course)

Posture & Tension Reduction
Releasing compensations and building body awareness for vocal freedom
This is not a quick-fix course—it’s a continually expanding library for singers dedicated to understanding their instrument at the highest level.
Every session invites you to slow down, observe, and rebuild awareness at the most precise level of coordination, helping you uncover the voice you were truly meant to use.

I don’t teach basic vocal technique — I rebuild voices, expand range, and restore lost function.
With nearly 20 years of experience as a voice technician and opera singer, I specialize in advanced vocal training for classical singers. My work focuses on myofunctional voice rehabilitation, reactivating thin-edge function, developing true range flexibility, and building vocal muscle for long-term sustainability.
My clients perform with companies such as Deutsche Oper, The Metropolitan Opera, La Scala, Wiener Staatsoper, Houston Grand Opera, Salzburger Festspiele, and Theater an der Wien. They’ve advanced in major competitions including the Metropolitan Opera National Council and Schmidt Vocal Competition, and have earned scholarships to top conservatories and universities.
Most importantly, they’re singing with more freedom than ever—building real careers, not just collecting accolades.


As an opera singer, I have performed with companies such as the National Moravian-Silesian Theater, National Theater of Croatia–Split, Opera Orlando, Opera Naples, Annapolis Opera, Wichita Grand Opera, Gulfshore Opera, and Tri-Cities Opera. Major roles include Amelia (Un Ballo in Maschera), Marietta (Die tote Stadt), Rosalinde (Die Fledermaus), Donna Elvira/Anna (Don Giovanni), Violetta (La Traviata), Fiordiligi (Così fan tutte), Susannah, and Suor Angelica.
I have received numerous awards, including first prizes in the Jenny Lind Competition, Connecticut Concert Opera Competition, and Marcella Kochanska Sembrich Competition; second prizes in the Kosciuszko Foundation Competition and National Federation of Music Clubs Biennial Young Artist Awards; third prize in the New Jersey State Opera Competition; and a Career Bridges Foundation grant.
I currently live in Bratislava, Slovakia, with my husband, a Slovak opera conductor, and maintain a residence in Orlando, Florida.

The Technique Vault is included with VWJ Membership, but can also be accessed independently by singers seeking focused, self-paced technical study.
Join me as I share insights on vocal technique, artistry, and the real work behind sustainable singing. No quick fixes, just honest perspective from nearly two decades of training professional classical singers.

Join my free virtual studio with member-only vocal tips