External Consultants


We believe that by the conjunction of several techniques, approaches and methods we can help our students to unleash their full potential. In order to provide a more diverse and extensive education for our voice teachers, we have teamed up with many external consultants from diverse teaching and performing backgrounds.

Some of our External Consultants are:

EXTERNAL CONSULTANT/ Curriculum Developer

Greg Enriquez is regarded by several Entertainment Professionals to be the most effective and commercial Vocal Technique Instructor in Las Vegas. He has conducted clinics and private instruction for L.I.P.A. (Paul McCartney),A.C.M. (London, England), the Queensland Conservatorium/Griffith University (Brisbane, Australia), Green Institute of Voice (Munich, Germany), National Academy of Recording Arts & Sciences, Inc. (National Grammy in the Schools Career Day) featuring Clint Black, Jimmy Jam, Monica, Phil Ramone, Robi Rosa, Jose Behar, Desmond Child, and many more. Personally selected and endorsed by Maestro Seth Riggs to be his Associate in 1991, Greg Enriquez is regarded by several Entertainment Professionals to be the most effective and commercial Vocal Technique Instructor in Las Vegas. He has successfully coached hundreds of singers, dancers, and actors in every aspect of musical performance. Though Enriquez maintains an active teaching schedule at his private studio in Las Vegas and at Maestro Riggs’ studio in Los Angeles, he travels throughout the world as a Guest Lecturer and Teacher in Vocal Therapy and Singing Technique. He has conducted clinics and private instruction for L.I.P.A. (Paul McCartney), A.C.M. (London, England), the Queensland Conservatorium/Griffith University (Brisbane, Australia), Green Institute of Voice (Munich, Germany), National Academy of Recording Arts & Sciences, Inc. (National Grammy in the Schools Career Day) featuring Clint Black, Jimmy Jam, Monica, Phil Ramone, Robi Rosa, Jose Behar, Desmond Child, and Deborah Cox, the Kennedy Center Alliance of Arts Education Network, and Ann Reinking’s Broadway Theatre Project with Gregory Hines, Tommy Tune, Joel Grey, Pat Birch, Marilu Henner, and Julian Stein. Greg has also extended his expertise to the SLS Summer Program alongside Ken Komisar (A & R, MJJ Records), Steve Baker (Disneyland Casting) Marylata Jacobs (Dreamworks Casting), James Ingram, Peter Gallagher, and Nancy Dussault, and the Donna Reed Foundation (Eddie Foy III, Shelley Fabares, Robert Hays, Howard Keel). In the field of Opera, his pupils have won scholarships to several institutions including The Boston Conservatory. His Musical Theatre students include the youngest singer to play Sandy in Grease on roadway (Lindsay Korman of NBC’s Passions). He was a special contracted Vocal Consultant for Solange Knowles (Columbia Records), the Tommy Hilfiger Britney Spears…Baby One More Time Tour, HardRock presents Hole Celebrity Skin Tour (Courtney Love), BLAQUE (Columbia), Creations du Dragon (Celine Dion), as well as for the multi-million dollar productions Mystère (Cirque du Soleil) at the Treasure Island, Starlite Express at the Las Vegas Hilton, Legends in Concert at the Imperial Palace, Zumanity (Cirque du Soleil) at the New York New York Hotel, Splash at the Riviera Hotel, Notre Dame de Paris at the Paris Resort, the Penn & Teller Show for FOX, the Havana Night Club, We Will Rock You at the Paris Resort, and LE RÊVE at the Wynn Resort. In the area of Popular Music, many of Greg’s students are currently working Production Deals with industry giants such as David Foster, Quincy Jones, Mike Post, Humberto Gatica, Mercury Records, EMILatin, and Sony-Japan. He also has assisted numerous physicians who specialize in organic and functional disorders of the voice in Vocal Therapy. Greg holds the highest level of certification (5) and is a founding member of the Instruction Management Team for Speech Level Singing International overseeing teacher certification. Greg far exceeds the required standard through continuous weekly one-to-one study with Maestro Riggs acquiring more than 600 hours of individual instruction and well over 7,000 hours of Master Class participations.

EXTERNAL CONSULTANT/ Breathing coach and certified advanced MDH Breathing Coordination practitioner

Born in Munich, Germany and raised between Germany, Switzerland and the USA, Barbara Tanze graduated from the Conservatoire de Lausanne with an M.A. degree in vocal pedagogy and classical vocal performance. She has sung opera productions and concerts around Europe, including the role of Violetta Valery (La Traviata) at the Slovenian National Opera in Ljubljana and also performed around the world with her group »The Petticoat Girls«, seeking to promote classical music through humorous and entertaining storylines. Being a very versatile vocalist, she also participated in the electronic music project »The Atlas of the Lost Islands« by the Italian composer/artist Paolo Pascutto and is the lead singer of the symphonic metal band AqvileA.  Barbara is one of only a dozen certified advanced MDH Breathing Coordination practitioners in the world today. She also actively pursues her training in different manual practices and vocal approaches. In 2017, she was invited to teach a MDH Breathing Coordination workshop in London for Ultimate Artists, a development programme for young performers created by Joshua Alamu as well as sharing her knowledge at the first World Voice Teachers Expo in Poland. Barbara has taught workshops at Pacific Opera in Sydney and Adelaide State Opera in 2018 and presented her research work in Los Angeles and Long Beach, California.  In addition to her work with singers of all styles, Barbara is training amateurs and professional athletes to optimize their breathing mechanism for any kind of athletic activity. Her clients include Andreja Sterle Podobnik, winner of the Everest Trail Race in 2016, Slovenian cycling champion Matej Mugerli, Olympian Urška Poje (biathlon) as well as many others.  

EXTERNAL CONSULTANT/ Musical Theatre and Classical Studies

Richard studied singing at The Guildhall School of Music and Drama and with Renato Cappecchi in the USA. On leaving GSMD he enjoyed a 20-year career continuously in work performing over 40 principal roles with all the major British Opera companies, collaborating with many of the world’s finest conductors, directors and choreographers. He has also given recitals, concerts, oratorios at home and abroad, and taken part in many commercially released recordings. He was also versatile enough to take on, amongst others, the title role in The Phantom of the Opera at Her Majesty’s Theatre, London and Ravenal in Showboat, which he performed for nearly two years on national tour and twice at The London Palladium. He brings a wealth of experience as an educator, teaching a variety of singers including; young adults, undergraduates, post-graduates, industry professionals on a one-to- one basis as well as directing Choirs and musicals, delivering workshops and summer schools.


Singing since the age of 4, Jackie spent her formative years mimicking her favourite pop stars where she discovered a talent for ‘making strange noises’ and pushing the boundaries of vocal ability. As a versatile and flexible vocalist in her own right, she has sung in various roles in productions ranging operettas, to rock, pop, soul, R&B and metal. Graduating from the Leeds College of Music she became an electronic composer and session singer before taking a career break to study a degree in Interactive Media and Online Marketing, winning the European Search Personality of the Year award and a place on the prestigious list of alumni of note from Huddersfield University along the way. Having an interest in vocal pedagogy and wanting to teach singers how to reach their full potential, Jackie studied at the Complete Vocal Institute in Copenhagen and Estill Levels 1 & 2 and is now one of only 6 qualified CVT instructors in the UK with a speciality in vocal effects. Meeting Andres in 2006 at the Institute, she joined forces with the European Vocal Camp to provide the Vocal effects, lyric interpretation and improvisation workshops since 2006, and has been used as the ‘soundbox’ to demonstrate growl, grunt, tuva, creak, fry, whistle, rattle and various combinations of Vocal Effects at the World Voice Teacher Expo and is now proud to become an external consultant for the Institute of Modern Vocal Training Jackie has been teaching vocal effects to both students and teachers in global masterclasses working with international rock and metal artists, rappers, Jazz, Soul and Blues artists and more recently ‘The Voice’ contestants. She teaches in the UK, Norway, Sweden, Iceland, Israel, Brazil and the USA, and is passionate about helping singers overcome their nerves, improve their technique and gain confidence to sing from the heart knowing that their voice will never let them down. With an ability to sing all styles she is currently working with an international Prog metal band as both coach and session singer and singing in a rock band, vintage duo, disco / soul outfit and blues trio and brings many years experience in teaching vocal effects, extended techniques and singing in extreme styles to singers of all ages and styles without harm or damage to the voice.

More consultants will be announced very soon