Professor at the Katarina Gurska Superior Conservatory in Madrid and Franz Liszt Center for special talents in La Nucia (Spain).
István is a concert pianist and internationally recognised teacher: he has been invited in Master Classes in Budapest (Hungary), in the World Teachers Conference in Novi Sad (Serbia), in the Katarina Gurska Conservatory, in Forum Musikae (Madrid), in the International Piano Festival "UIS" in Bucaramanga, in Manizales (Colombia), Special School of Music in Apatin, Sombor, Senta, Backa Topola (Serbia), Conservatory in Alicante and Dénia, in the International Music Festival in Valencia etc. He is frequent jury member in international competitions such as the Franz Liszt International Competition in Rome (Italy), the Takács Competition in Oberschützen (Austria), Bucaramanga (Colombia), the IMFV Valencia competition, the Ibiza International Competition, the "Villa de Xabia" International Contest etc.
Winner of several awards in national and international competitions. Since the age of 15 he has given recitals in Europe, the United States, South America and Asia. To name a few: in Alexandria and New Harmony (Indianapolis, USA), in the International Piano Festival in Bucaramanga, International Piano Festival in Barrancabermeja, cycle "International Season in Manizales" (Colombia), "Kolarac" in Belgrade ( Serbia), in the "Kodály" Institute, "Kodály" School, in the "Béla Bartók" Museum, in one of the most important festivals "Zsidó Kulturális Fesztivál" in Szeged (Hungary), recitals in Sweden, Greece, in the festival "Midis-minimes", in "Muziekacademie de Berchem-Sainte-Agathe in Brussels (Belgium) and in Spain in important auditoriums such as the Palacio de Cibeles in Madrid, Palau de la Música in Valencia, Teatro Principal de Alcoy, congress center" Victor Villegas "in Murcia, in the" Adoc ", in the University of Burgos, in the International Chamber Music Festival in Calpe, in" Dénia Classics ", Aula de la Cam in Alicante, Teulada Auditorium, La Beneficencia in Valencia, in the Auditorio de la Diputación, "ADDA" in Alicante, Auditorium Mediterrania in La Nucia among others. He has performed in private concert for the Princess of Thailand S.A.R. Chulabhorn Mahidol.
His teachers were Aleksandar Madzar, Orsolya Szabó, Michael Boguslavski, Mátyás Molcer, Valéria Utasi, Milica Dundjerov at the Brussels Royal Conservatory, Jerusalem Rubin Academy, Kodály Institute of Kecskemét, Conservatory of Subotica and Music School in Sombor.
He is founder and member of the international Camerata "Universal Music". He has performed with international artists such as Clara Novakova, Joaquin Palomares, Joan Enric Lluna, Jovan Bogosavljevic, Susanna Gregorian, with the soloists of the Orchestra of Valencia etc.
In 2017 István I. Székely made the recording of five Chopin etudes for the animated short film Impromptu, directed by María Lorenzo and produced by Enrique Millán, with the participation of Cultur Arts (Generalitat Valenciana) and the A Punt Media network . Impromptu has been one of the most relevant Spanish animation shorts of the last year, being shortlisted for the Goya 2018 Awards. It was premiered at the emblematic Alcalá de Henares Film Festival, and so far it has been screened in more than 50 events in 20 countries, such as the Animation Festival of Annecy (France), the Bristol Encounters (United Kingdom), Anima Mundi (Brazil) or the Animation Nights (New York). Prizes won: Best Art Animation at the Expression Art Movie Festival (Los Angeles, USA), Best Short Film (exaequo) at the Animaze Animation International Festival (Montreal, Canada), Best Experimental Animation Short at the International Animation Cardboard Festival - La Tribu (Buenos Aires, Argentina), Best Animation Short Film at the Astorga Film Festival (Spain), Best Valencian Animation at the Cortoons (Gandía)