At the age of 13 he started to study zither playing by Ladislav Argus Rysavy in Varnsdorf. He was the one who developed Michal's great relation to this nearly forgotten instrument using the very natural teaching methods. After the graduation exam (1995) Michal left to Vienna to study by the professor Mrs. Hannelore Laister . He had been preparing himself at the music school for two years and afterwards he began to study the classic zither at the Conservatory of Vienna. He graduated in 2001 and returned back to the Czech Republic.

Michal Muller is presently the only educated zither player and the teacher of the concert zither in the Czech Republic. He belongs to the most progressive zither players of the world. As the solo player is Michal most popular for his personal expression and approach to the instrument. He plays classical music, but mostly his own pieces that is based on folk motives, as well as on blues, jazz, world music and free improvisation. He cooperates with the musicians of the different music genres, he improvises with expressive dancers and poets, writes music for movies... He also arranges compositions for zither. In music he prefers free realization and opportunity to show his individuality. He sings very often too. "Zither is simply my own instrument through I can express myself, through I can speak like with my tongue." As the teacher he lectures the concert zither seminars in Germany, Austria, Slovenia and also in the Czech Republic.