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Don't See a Huge Social Presence for Me?

That's because, instead of building myself up as an influencer, in my studio - YOU are the star! My passion is helping you build a strong technique as well as a lion's heart to shred through the inherent hurdles of a performing career.


Unparalleled Expertise

With 20 years as the principal associate to renowned vocal clinician Joann C. Zajac (ZajacStudio), Zeffin brings unparalleled expertise. He has trained luminaries across all vocal genres while also nurturing emerging talent for enduring careers.


Global Reach

Zeffin provides in-person coaching in LA, Vegas, NYC, and Wichita, plus online sessions globally. Students from Budapest to Dubai, Seoul to Hong Kong have benefited from his world-class instruction.

Studio Locations

LA = The Hancock Park Enclave of Hollywood

Vegas = Southern Highlands

NYC = Hell's Kitchen

Wichita = NE 13th & Woodlawn


Get in Touch

Text me to set up an interview: (212) 749-0395.


Singing Actor’s Lab™ was born out of a love of teaching and vast knowledge of musical theatre and opera genres. This class is designed to help singers from any genre (including pop) find a way to be effective in storytelling through the voice.

Check HERE for the next class dates and info.

ZajacStudio Vocal Technique
LACHSA | The Los Angeles County High School for the Arts
Singing Actors' Lab
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