Perfect your craft with preeminent performer, director and coach. Zeffin Quinn Hollis.

For the past ten years, Zeffin Quinn Hollis has been the principal associate vocal technician to renowned master clinician Joann C. Zajac.  For over forty years, ZajacStudio has been teaching a precise and reliable method.  Known for unearthing talent; building voices from inception; and guiding and managing the well trained singers through the inherent difficulties of a performing career: ZajacStudio has earned a coveted reputation for providing a meticulous regimen that builds a strong and consistent singer with a “complete package” ready to take on the difficulties and rewards of a major world stage career. Students have traveled from as far as Hong Kong to work with these down to earth and practical technicians and they encompass every genre including pop, musical theatre, and opera. Using the exceptional Zajac approach, clients have garnered both critical and popular success working on Broadway, London's West End, and in opera houses all over the world.  Zeffin’s client list also includes recording artists and a long list of top celebrities.