Carmen Moreno (Barcelona, Spain)
Conductor and Soprano lírico-ligera. She graduated from Conservatory Juan Jose Landaeta Caracas (Venezuela), Conservatory Superior of Music of Liceu in Barcelona and Conservatory Professional of Badalona (Spain). Her educational work has focused on the teaching of vocal technique and conducting choirs, which she combines with concert work. She has published a book entitled Mitécnica Vocal Paso a Paso (My Vocal Technique Step by Step) and written various articles related to vocal music and published by the online magazine Arts Educa, the last article was published in IFCM International Choral Bulletin Vol XXXIV N2 2015. She has offered workshop on vocal technique to chamber ensembles and spoken at conferences at Aula Universitaria and Public Library Clarà of Barcelona. She has been a jury member at International Music Festival of Cantonigròs 2015. She is professor of singing at the Escuela Estudi Musical as well as conductor of the Esperit Cantaire Choir and Cantoría Re-quinto Chamber Choir in Sagradafamilia Church in Barcelona.

Prof. Bernhard Gfrerer (Salzburg, Austria)
He graduated from Mozarteum specilizing in church music. Since 1987 he has been an organist and choir conductor at Franciscan Church in Salzburg. He performed with world famous artists like Placido Domingo, Jose Carreras and James King. He gives many concerts in mayor European cities as well as in USA, South America, Russia and Asia. He is lecturer at master classes in USA, Japan and South America and was Jury member at many international competitions. He made numerous recordings for TV, radio and recording companies.

Piotr Jańczka (Poland) composer and choral conductor.

He graduated from the Academy of Music in Bydgoszcz, Faculty of Choral Conducting and Music Education, in the conducting class of prof. Janusz Stanecki. He is a graduate of the Postgraduate Choir Master's School at the above-mentioned university. Founder and conductor of choirs in Wyrzysk: Interschool Choir "Canto", Wyrzysk Men's Choir and Wyrzysk Choir "Canto". Together with his ensembles, he has won over 70 awards at international and national choral competitions. Many of Piotr Jańczak's compositions have gained recognition and have become compulsory pieces in prestigious international choral competitions. These include, among others: competitions in Venice, Rome, Bonn, Riva del Garda, Helsingborg, Neuchatel. He is the artistic director of the National Men's Choir Competition in Wyrzysk. Juror of many choral competitions in Poland and abroad. In 2009, he obtained a doctorate in musical art in the artistic discipline of conducting. Author of "Missa Film Stetinum" for symphony orchestra, men's choir and soloists. Currently, he is a Professor at the Academy of Music in Bydgoszcz.