
Prior to joining The Musical Horizons Conservatory as Head of Vocal Studies and Professor of Voice, Mr. Marrazzo was Head of the Classical Voice Department and Professor of Voice at the Conservatorium van Amsterdam (CvA). Under his leadership, the curriculum, level of student achievement, and international profile of the CvA’s Classical Voice Department grew exponentially. Before his work at the CvA, Mr. Marrazzo was the Executive Director of Astral Artists, an organization committed to the discovery, development, and promotion of the nation’s most gifted emerging classical musicians. Prior to his tenure at Astral Artists, Mr. Marrazzo was the Director of Casting & Artistic Operations for Glimmerglass Opera in Cooperstown, New York. He revitalized Glimmerglass’ mainstage casting, raised its acclaimed Young American Artists Program to an unprecedented level of achievement, and created and fostered collaborations with a number of renowned organizations, companies, and artists including the New York Festival of Song (NYFOS), The Morgan Library and Museum, the Bavarian State Opera, and baritones Håkan Hagegård and François Le Roux. Mr. Marrazzo first joined Glimmerglass as its Director of Public Relations, serving as chief representative to the local, regional, national, and international media, and liaison to the local community. A strong advocate of arts education, Mr. Marrazzo created numerous educational outreach initiatives during his tenure at Glimmerglass.
Mr. Marrazzo has served as a judge for the Metropolitan Opera National Council Auditions, presented seminars and masterclasses for the Graduate Vocal Arts Program at Bard College Conservatory of Music; the National Association of Teachers of Singing (NATS); Opera Viva! In Verona, Italy; Red River Lyric Opera; Penn State University; and Temple University and has served as a presenter and panelist for singer training forums with OPERA America.
A native of Bucks County, Pennsylvania, Mr. Marrazzo holds degrees in vocal performance from the Curtis Institute of Music and the Sweelinck Conservatorium, as well as an M.M. in Classical Voice Pedagogy and Performance and an M.F.A in Voice Pedagogy for Musical Theatre from Penn State University.

Ms. Hata is a graduate of Tokyo University of the Arts (M.M./B.M.).
From 1997 until 2007, while residing in New York City, she appeared in many operas in roles such as Juliette in Gounod’s Roméo et Juliette, Mimi in Puccini’s La Bohème and Micaëla in Bizet’s Carmen (Natchez Opera Festival in Mississippi/US), Fiammetta in Giordano’s La Cena delle Beffe and Claretta in Leoncavallo’s Zazà (Teatro Grattacielo in Lincoln Center/US), Donna Anna in Mozart’s Don Giovanni (Yokohama City Opera/Japan, H&K Arts Productions in NY/US), Fiordiligi in Mozart’s Cosi fan tutte (Silesian State Opera Theater/Czech Republic, Tokyo University of the Arts/Japan), Lady Yang in May-Tchi Chen’s Firmiana Rain (premiere at Taipei National Theater/Taiwan,
Beijing Mephisto Arts Productions/China, Yokohama Minato Mirai Hall/Japan), First Lady in Mozart’s Die Zauberflöte (Nikikai Opera Company in New National Opera Theater/Tokyo),
Butterfly in Puccini’s Madama Butterfly (Machida City Opera/Japan, JM Opera Productions/Japan), Frasquita in Bizet’s Carmen (Kimitsu City Opera/Japan, Sakado City Opera/Japan), Sylva in Kálmán’s Die Csárdásfürstin (Japan Operetta Society).
Ms. Hata’s oratorio appearances include the soprano soloist in Rossini’s Stabat Mater
(The Symphony Orchestra of The Bulgarian National Radio/Conductor: Milen Nachev), in Verdi’s Requiem (Bulgarian Opera Company/Spain Concert Tour), in Händel’s Messiah (Kofu Messiah Choir & Orchestra/Japan), among others. She was also invited to be the guest star of concert productions of Tchaikovsky’s Eugene Onegin and Dvorák’s Rusalka (Sofia Metropolitan Orchestra/Bulgaria), Korea-Japan Friendship Concert Tour presented in New York, Philadelphia, Tokyo and Seoul (H&K Arts Productions).
As a recitalist, she has appeared at Carnegie Hall’s Weil Recital Hall, Merkin Concert Hall, and the Consulate-General of Japan in New York City. In Tokyo, she performed recitals in Oji Hall and the Gotanda Cultural Center Music Hall.
Ms. Hata’s competition accolades include finalist in The 12th Annual Violetta Dupont Vocal Competition held by The Opera at Florham Guild in New Jersey, The Annual National Young Opera Artist Competition of Opera Longview in Texas, and The Annual Vocal Competition under the auspices of The New Jersey Association of Verismo Opera. She received an Honorable Mention in The Classical Production Vocal Competition and the Encouragement Award from The Rising Opera Star Competition by Naomi Music Productions and Recordings in NY.
Ms. Hata is a professional member of The Nikikai Opera Company in Tokyo and Odawara Music Association in Japan.
She has been a faculty member of both Voice Major and Musical Theater Major programs at Showa University of Music in Japan since 2016.

He is a graduate of the Royal College of Music in London, where he studied piano with John Blakely and piano accompaniment with Nigel Clayton.
He has participated in numerous masterclasses and seminars with internationally renowned pianists and pedagogues, including Paul Badura-Skoda, Murray Perahia, Pierre Boulez, Nelly Akopian-Tamarina, Konstantin & Julia Ganev, Aleksandar Raichev, among others.
He has received prizes and distinctions in international competitions in Greece and abroad. In the United Kingdom, he was awarded First Prize at the Robert Sutherland Piano Accompaniment Competition (2002).
As a soloist and collaborative pianist, he has performed in major concert halls and cultural venues in New York, London (Wigmore Hall, National Gallery), Rome, Paris, Milan, Weimar, Cyprus, the Athens Concert Hall, Thessaloniki, Crete, Rhodes, and elsewhere.
Opera and vocal repertoire form a significant part of his artistic activity. He has long-standing experience in working with singers, regularly collaborating in the preparation and performance of opera, operetta and art song repertoire.
He has collaborated with the Greek National Opera, the Onassis Stegi, the Aegean Festival, and other cultural institutions, participating in music and educational projects throughout Greece.
He has been living and working in Athens as a pianist and teacher of piano and music theory since 2004.

Parallel to his busy schedule of concert engagements, Nikos Kyriosoglou devotes much time to teaching, working alongside young talents to foster the next generation of classical music ambassadors and continues to serve as collaborative pianist at the State Conservatory.


Over the past year Martina Frezzotti has carried out an intense and wide-ranging artistic activity both as a concert pianist and educator. Her international season included major solo recitals, chamber music performances, masterclasses and radio broadcasts. She opened the season with a highly acclaimed all-Chopin recital at Carnegie Hall in New York, receiving a standing ovation for her interpretations of the Four Ballades, the 12 Etudes (Op. 25) and the Scherzo No. 2. She received an outstanding review from renowned critic Christopher Axworthy.
In June 2026, she made her debut at the Mariinsky Concert Hall, performing Tchaikovsky’s Piano Concerto No. 1 as soloist with the St Petersburg Northern Sinfonia Orchestra under the baton of Fabio Mastrangelo. The concert was presented as part of the prestigious XXXIV Music Festival Stars of the White Nights, under the artistic direction of Valery Gergiev.
She has given piano masterclasses at prestigious institutions including the Liszt Ferenc Academy of Music in Budapest, the Chopin University of Music in Warsaw, Trinity Laban Conservatoire of Music and Dance in London, as well as at important universities and conservatories in other countries.
Throughout her career Frezzotti has performed in Russia, Italy, Japan, Spain, Germany, Austria, France, Poland, Bulgaria, Belgium, the Netherlands, Slovenia, Croatia, Greece, Great Britain and the USA.
Her growing international recognition is also reflected in her discography for Brilliant Classics / Piano Classics. Her first two albums are dedicated to female composers Fanny Mendelssohn Hensel and Amy Beach. These recordings have received critical acclaim from leading publications and radios including Gramophone UK, BBC Music Magazine, International Piano, Pianist Magazine, Piano News Deutschland, Rondo Magazine, American Record Guide, Fanfare, MusicWeb International, Classics Today, BBC Radio 3, Germany’s SWR 2 and RBB Kultur, Austria’s ORF Ö1, Switzerland’s SRF 2, New York’s WWFM. Her albums have twice received the distinction of “CD of the Month” and multiple five-star reviews. In particular, her Amy Beach album received exceptional praise from internationally renowned critics including Jed Distler, Jeremy Nicholas, Peter Quantrill, Patrick Rucker and David Hurwitz.
Frezzotti has participated in numerous national and international piano competitions, obtaining awards and distinctions including the Gold Medal at the Vienna International Music Competition (2020), semi-finalist diplomas at the Prokofiev International Competition in St Petersburg (2013) and the International Competition for Young Pianists in memory of Vladimir Horowitz in Kyiv (2012), and 1th prize at the Brest International Piano Competition (France, 2013). In 2015 she was among the four Italian pianists competing in Warsaw’s XVII International Chopin Piano Competition.
For the upcoming academic year, she will pursue a Master’s degree in Musicology at the University of Oxford. Her research project explores the legacy of the Soviet musicologist Boleslav Yavorsky in the interpretation and reception of Johann Sebastian Bach’s music, a subject on which Martina Frezzotti is currently writing a monograph.

She furthered her studies on Voice Pedagogy under Don Marrazzo.
She has performed as a soloist with the Thessaloniki Municipal Orchestra, Thessaloniki State Orchestra, Opera of Thessaloniki, Thessaloniki Megaron, Athens Megaron (dance platform 2008, Athens – Berlin) performing roles in Purcell’s Dido and Aeneas, Mozart’s Requiem, Menotti’s Medium, Puccini’s Gianni Schicchi, Mascagni’s Zanetto, Humperdinck’s Hansel und Gretel, Verdi’s Rigoletto and La Traviata.
As a recitalist she has performed at the Auditorium Eugenio Montale at the Teatro Carlo Felice in Genova, at the Fiera Internazionale in Milan and has collaborated with the music theatre group Gruppo Caronte in a Northern Italy tour.
She has performed in numerous concerts of chamber music in festivals all over Greece .
She has a remarkable teaching career. She is the head of the voice department at the Municipal Conservatory of Drama since 2000. Her students have won important scholarships and many of them are performing in some of the major Opera theaters and festivals in Europe including Komische Oper Berlin, Gärtnerplatztheater München, Royal Opera House at Covent Garden, Edinburgh International Festival.
She has given many courses on voice technique and she is a member of the teaching staff at the Lefkada Music Week since 2014.
She holds a degree in Law from the Aristotle University of Thessaloniki.

She continued her studies in the conservatory of Vienna (Konservatorium der Stadt Wien) with Andreas Lindenbaum and Robert Nagy. After that, she studied in the Conservatory of Carinthia, Austria (Kärtner Landeskonservatorium) with Milos Mlejnik and graduated in 2010 with the highest honours.
She has participated in several International Chamber Music Festivals, such as the Wiener Festwochen, Bebersee festival Berlin and the Bayreuther Osterfestival. She has been part of world-renowned chamber music groups, such as the Klagforum Wien, Krenek Ensemble, Ö.G.N.M., as well as with the orchestras Sinfonietta Baden, Academia Ars Musicae, Kärtner Sinfonieorchester, the ERT National Symphony Orchestra and the Orchestra of Colours. In 2008-2009 she was the principal cellist of the International Youth Symphony Orchestra in Germany (IJOA) and the SFK Symphony Orchestra in 2010.
She has attended numerous international seminars of prominent musicians such as J.Starker, M. Kliegel, R. Leopold, Chamber Music seminars of Shostakovich Trio, Szymanovsky Quartett and Artemis Quartett and also contemporary classical music seminars of the Ensemble Modern in Frankfurt.
Her interpretation of Haydn Cello Concerto in C major in the international competition Allegro Vivo in Austria was considered to be outstanding and she has also appeared as a soloist with the Kärtner Symphonieorchester playing R. Schumman’s Cello Concerto.
Along with her violoncello studies in Austria she founded the piano trio “Echos” with which the members completed their first cycle studies in Chamber Music with the highest honours. The trio was awarded a special prize in the competition Johannes Brahms Wettbewerb. They took part in various Chamber Music Festivals such as the Kultursommer St. Paul’s, the International Chamber Music Festival of Santorini and concerts of theirs were broadcast -some of them live- by the Austrian Broadcasting Corporation (ORF) in Austrian, Italian and Slovenian cities.
Ellie Philippou has been teaching violoncello in the Conservatory of Athens since 2012 and has a permanent position in the Athens Academica orchestra.
