András Keller is a Hungarian violinist, the founder of the Keller Quartet, and the director and conductor of Concerto Budapest (earlier Magyar Telekom Symphonic Orchestra).

At the age of 7, Keller began playing the instrument and he was admitted to the Liszt Ferenc Academy of Music at the age of 14, where his teachers were Dénes Kovács, Ferenc Rados and György Kurtág. Later, he moved to Salzburg, where he studied with Sándor Végh. In 1983 Keller won the Hubay Violin Competition after which he received an invitation from János Ferencsik to become the National State Orchestra's leader. During the same time, he worked as a soloist for the National Philharmonica and from 1984 to 1991 was the Budapest Festival Orchestra's leader. In 1987 he founded his own quartet (András Keller, János Pilz, Zoltán Gál, Judit Szabó) and they became Eviani and Reggio Emilia's String Competition winner in 1990. The quartet regularly performs at great European and American festivals and concerts; they have toured in Japan, Central and South America and New Zealand several times.

Some of the most significant events in András Keller’s career were his performances with Sándor Végh, specifically the concert in the Barbican in London to commemorate the 50^th anniversary of Bartók’s death, where he played at the request of George Solti, and an invitation by Princess Diana. His recordings as a soloist and chamber musician have won the most prestigious prizes; between 1996 and 2006, for example, he was awarded six times the Deutsche Schallplattenpreis. He was given the award of Bonn and in Italy he was chosen to be the Artist of the Year. His other awards include: the MIDEM Classical Award (twice), Victoire Prix, the Japanese Record Academy Award, and the French Grand prix du Disque. In 2007 he was given the Belgian Caecilia Prix for the best chamber music record of the year. 

He regularly performs at the most notable festivals, like the Salzburg Festwochen, the festival of Luzern, Montreux, the London Proms, the Mostly Mozart New York, the Berliner Festspiele, the Schubertiade, the Wiener Festwochen, the Schleswig-Holstein Musik Festival, and the Prague Spring. András Keller holds master courses world wide, among others, at the Internationale Sommerakademie, the Prussia Cove IMS master school, at Yale University in the US, at Accademia Fiesole in Florence and at the Royal Academy of Music in London. During his concert tours he appeared in almost every noteworthy concert hall in the world: Musikverein, Konzerthaus (Vienna), Royal Albert Hall, Barbican (London), Berliner Philharmonie, Konzerthaus (Berlin), Accademia di Santa Caecilia (Róma), Concertgebauw (Amsterdam), Carnegie Hall, and the Lincoln Center (New York).

He is a dedicated performer of contemporary music and is closely linked to Kurtág György. Several of Kurtág’s significant pieces have been premiered or performed by him all over the world. He debuted as a conductor in 2003 with the Orchestra di Padova e del Veneto. He was the director of the musical programme of the Arcus Temporum Festival in Pannonhalma between 2005 and 2009. He initiated the Sándor Végh Musical Evenings with Dénes Várjon in 2006, and contributed to the establishment of the Végh Philharmony. He was appointed as the musical director of Magyar Telekom Symphonic Orchestra (today Concerto Budapest) on 1st August 2007.

His appointment at Concerto Budapest resulted in major changes in the life of the orchestra. Since 2007 besides the expanding classical repertoire, András Keller also puts emphasis on the performance of 20th century or contemporary pieces (mostly in Hungary).

Benedictine monk from Pannonhalma, born in 1980 in Szombathely. He graduated from the Czuczor Gergely Benedictine High School in Győr. He completed his theological studies at the Sapientia Monastic Theological College in Budapest. He holds a degree in Classics and Philology and a Master's degree in German and Latin from ELTE. His doctoral dissertation is based on the biographies of St. Jerome. Since 2015, he is the cultural director of the Pannonhalma Abbey, managing director of the Benedictine Publishing House, director of the Arcus Temporum art festival, and editor-in-chief of the Pannonhalmi Szemle.

She is soloist and soloist leader of Concerto Budapest. She is also a regular and committed performer at contemporary music concerts, both as a soloist and chamber musician. Her playing is characterised by a balance of proportions, a musical approach that is free of externalities, a musical focus on the essentials and a flute sound with a particularly clear tone.

Csaba Klenyán, a clarinet artist, was born in 1969 in Vác. His musical studies – from a beginner to the highest level – were guided by Ede Szabó, János Maczák, Gábor Mihalitz, József Balogh and Béla Kovács. He is a soloist, chamber musician and the soloist clarinettist of Concerto Budapest. Besides his classical repertoire he puts significant emphasis on interpreting contemporary music as well. Several composers wrote for him or dedicated to him their works. He is a founding member of UMZE Chamber Ensemble, the Új Dimenzió Műhely (New Dimension workshop), and he has been the soloist clarinettist of Weiner-Szász Chamber Symphony since 1999. He regularly plays improvisation music besides classical music; in this activity his partners are the most eminent representatives of national jazz and improvisational music. He has won several international competitions. He was awarded seven times the prize of the Artisjus Society, he was given the Soros prize in 2001, and the Liszt Prize in 2003. His records have been published by BMC Records and Hungaroton.

At the age of just ten, he was admitted to the Preparatory Section of the Academy of Music, in the Special Talents Class. Besides her father, she was taught by the best masters from Hungary and abroad; András Kiss, Ferenc Rados, Dénes Zsigmondy, Béla Bánfalvi, Dr. István Istvánné Zsigmondy Magdolna, Igor Ozim, Yfhran Neumann, Yehudi Menuhin, Tibor Varga, Ruggiero Ricci. In 1998 she graduated summa cum laude.

• Since 1998 she has been teaching violin solo practice at the Liszt Academy of Music.
• Since 1997 concertmaster and permanent member of the Telecom Symphony Orchestra and its successor Concerto Budapest
• Primarius of the Academy Quartet
• Second violin of the Keller Quartet

Hers instrument is an Antonius Gagliano master violin. She won the right to use the violin for 5 years in the 2021 tender for the use of master instruments owned by the Hungarian State.

Izabella Simon, pianist, graduated at the Franz Liszt Music Academy in Budapest as a student of György Kurtág, Ferenc Rados, Jenő Jandó and Sándor Falvai. Since graduation, she has been a regular participant of the most prestigious international festivals such as the Ittingen Festival led by András Schiff and Heinz Holliger, the Salzburger Festspiele, the Beethoven Fest (Bonn), the Marlboro Festival (USA), the Nelson Festival (New Zealand), and Halls as the Carnegie Hall (New York), Wigmore Hall (London), Tonhalle (Zürich), playing alongside musical partners such as Heinz Holliger, Steven Isserlis, Miklós Perényi, Christoph Richter and Radovan Vlatkovic. She attaches particular importance to increasing the popularity of songs, which is underlined by her appearances with Sylvia Sass, Andrea Rost, Ruth Ziesak, and Hanno Müller-Brachmann. As a soloist, she has performed with international orchestras as the Kremerata Baltica, the Chamber Orchestra of Europe, the Camerata Bern, Musikkolegium Winterthur Orchester, in addition to a number of Hungarian orchestras. She frequently plays piano four hands, and two piano recitals in Hungary and abroad with her husband, pianist Dénes Várjon. In the past decade they organized and led several chamber music festivals. The most recent one was “Kamara.hu” at the Franz Liszt Music Academy. She has made records with Dénes Várjon (The Great Fuge-Hungaroton), Sylvia Sass (Liszt, Schubert songs-Cant Art) and Andrea Rost (Bartók, Kodály, Ligeti songs-Warner). In 2015, she launched a highly popular concert series for children focusing on classical music, guiding children in the world of other arts with the help of the genres in the framework of a complex performance. Following her highly successful concert held at 92 Y in New York, she has been invited to the famous Bard College as a guest professor in 2010. In order to promote chamber music, she has come up with the idea of the Night of Chamber Music, starring distinguished artists as Steven Isserlis or Ferenc Rados.