Janos has been living among stringed instruments since his childhood, and he learned to play the cello, and nowadays plays as amateur cellist. „Hejja Cello Ensemble”
In 1994 he started his professional studies at the Instrument Maker Teaching Class at the Ferenc Liszt Academy of Music in Budapest.
In 1998 he founded his own workshop where he mainly deals with making and restoring mastercellos.
In order to improve his professional knowledge he has visited, and worked in several european and american workshops, where he could acquire the most ideal settings of the instruments and also some little tricks to find their perfect tone from experienced, world famous masters.
He is a cello-specialist.
His instruments are present at all of the important international exhibitions. (Cremona - Mondomusica, Wienna – Resonanz Festival, Paris - VioloncellenSeine, Amsterdam - CelloBiennale, Utrecht – Early Music Festival, Sevilla – Expo FeMas, Budapest – Wine and Violin, Milano , Basel etc.)
He makes and restores modern and baroque cellos as well.