Ellen Pieterse is an all-round singer with an expressive stage presence. Coming from a classical education, she has developed into an allround performer with a great love for combining the beauty of classical music with the many musical possibilities of today. Ellen has become a much-sought vocal teacher and an important part of her students find their way to the conservatoire. She is a teacher for vocal techniques in light music at the department of Musical Theater at the ArtEZ conservatoire of Arnhem and a guest teacher at the ArtEZ conservatoire of Zwolle. After her classical training at the conservatoire Ellen took courses in vocal technique for light singing and classes in drama and film/tv-acting. Since 2011 she is coached by renowned vocal teachers Neil Semer (New York) and Roberta Cunningham (Berlin).

Ellen had leading roles in several professional music-theatre and opera productions including many performances for children. She works on a regular basis as a solo-singer in the Netherlands and abroad and is connected to soloist-ensembles like ‘Muziektheater ImpAkt’ and ‘Vocaal Theater Vox’. She also is a core member of several professional choirs in the Netherlands with whom she produced a dozen choral music recordings.

Dr. Bo Rosenkull is a Professor of Singing and Singing Pedagogy at the Royal Academy of Music (KMH) in Stockholm. He is also a Professor of Dramatic Performance with a specialization in Music-Dramatic Singing at the Academy of Music and Drama (HSM) at Gothenburg University. Bo has been the president of Voice Teachers of Sweden for eight years and is now the Vice President of EVTA.

He is a sought-after voice pedagogue and has held masterclasses at music- and opera-universities in South Africa (Cape Town, Potchefstroom, Pretoria and Stellenbosch),
Azerbaijan, Seychelles, Netherlands, Turkey, Estonia, Latvia, Lithuania, Finland, Norway, Italy and Sweden. Bo is also a frequent lecturer and workshop leader and has lectured at conferences such as ISME, PASMAE, ICVT, EUROVOX, PEVoC and at the German, Italian and Norwegian Singing Teachers’ Associations.

He has sung more than 1500 performances as a principal artist for; the Royal Opera Stockholm, Folkoperan Stockholm, Gothenburg Opera, Malmö Opera, Riksteatern, Norrlandsoperan and more. Furthermore, he has worked as a choir conductor and music teacher in primary and secondary school. In addition, Bo is the author and composer of the book Come and sing!

With a reputation for working with exceptional young voices, Edwin is an educator, performer and musical director. Edwin is Head of Choral Music and teaches singing at Tring Park School for the Performing Arts, having previously taught at The Royal Ballet School and Stowe School. He is a deputy vocal teacher at the Royal College of Music Junior Department and an examiner for Trinity College London, a role which has taken him worldwide. Edwin chaired the Association of Teachers of Singing (UK) from 2022-2024 having been part of the council since 2016. He currently occupies the role of Past Chair. When not working in schools, he runs a busy private teaching studio from his home in Hertfordshire.

Edwin completed and MA in Music Education at UCL, with a specialism in working with teenage young singers and has a particular interest in male voice change, leading workshops and presenting at conferences throughout the UK on the topic. Edwin is a passionate advocate for accessible music education. He was a judge on the Music and Drama awards 2025 and is a regular contributor to Music Teacher magazine. As a conductor, he is Musical Director of the Buckinghamshire County Youth Choir and Aylesbury Consort of Voices.

He trained at Junior Guildhall School of Music and Dance and subsequently at Trinity College of Music. He has sung roles and chorus for opera companies and choirs throughout the UK and France alongside many lieder and English song recitals. www.edwinpittmansfield.com

Latvian baritone Edgars Skarbulis began his singing career as a member of the world-famous Youth Choir Kamēr…, which encouraged him to study Voice at bachelor and master degree level at the Jāzeps Vītols Latvian Academy of Music, class of Zigrīda Krīgere (2012-2018). He continued his education with a DAAD scholarship as a post-graduate student of opera singing at the Mannheim Academy of Music and Performing Arts in Germany with Professor Snezana Stamenkovic (2018-2021). Thanks to his MSc degree in Chemistry (2013), he has an enriching background in natural sciences and research as well.

With his freshly gained skills and knowledge, he returned to the Youth Choir Kamēr… as a vocal coach and project manager, thus gaining vast experience in production and event organisation as well. In 2012, he was elected into the executive board of the Latvian Voice Teachers Association (LATS), where he helped to organise a Eurovox congress in Riga (2015), planned the annual conferences and later took over the presidency of the association (2022-2024). Edgars is now an honorary member of LATS, and a member of the EVTA executive board since 2021.

Currently Edgars resides in Germany where he is a member of the Badischer Staatsopernchor and can be seen in several roles at the theatre in Karlsruhe and heard in various concerts.

Born in Scotland, studied German (Aberdeen, Zürich) and classical singing (RCM London). Opera and concerts with wide-ranging repertoire. Taught as freelance voice teacher at higher education institutions in Berlin, Dresden and Hamburg. 2010 awarded professor title by Hanns Eisler School of Music, Berlin. 2014-18 member at large on board of BDG, member of EVTA board since 2021.

As Estill Master Trainer awarded Service Distinction by Estill Voice International. Lectures, workshops and teaching demonstrations in multi-genre voice work in colleges and at conferences in Germany and abroad. Translator of German publications about music, singing and vocal pedagogy (e.g. for Breitkopf & Härtel).

Felix Herrmann is a German vocal coach, singer-songwriter, and educator. He studied Jazz and Voice Pedagogy in Dresden at the Carl Maria von Weber University of Music, where he is working as a voice teacher since 2023. In addition, he gives private lessons and conducts songwriting and performance workshops.

Drawing on a background of vocal practice across various genres, including pop, soul, R&B, rock, and jazz, his pedagogical approach focuses on the deep connection between vocal technique and stylistic choice, as well as on cross-genre training.

Having trained with SLS, CVT, and Estill instructors, he has gained insight into a range of methodologies, enabling him to connect with singers of diverse backgrounds.

Alizia Romero is a Spanish vocal coach, singer, choir director and educator with more than 25 years of experience in voice teaching and performance. She works internationally with singers, teachers and vocal coaches, combining practical voice training with a strong commitment to inclusive, ethical and evidence-informed pedagogy.

She is the first Spanish professional certified as an Estill Mentor and Course Instructor and has served three terms on Estill Voice Training’s Certification Advisory Board, contributing to certification and pedagogical development. Since 2019, she has also worked as an official Spanish translator of Estill materials. Her teaching currently reaches students from more than 25 countries across Europe, America and Asia.

Alizia is the founder and director of the University Expert Diploma in Vocal Coaching, developed in collaboration with EUNEIZ University. She also works actively as a professional singer, choir director and television vocal coach, with a particular connection to gospel, soul and contemporary voice.