A native of the Czech Republic, George Mraz was born in 1944. He began his musical studies on violin at age seven and started playing jazz in high school on alto saxophone. He attended the Prague Conservatory in 1961 studying bass violin and graduating in 1966.
It is likely that his early exposure to these melodic instruments contributed to his mature lyric gifts as a bassist, an instrument he came to rather late in the game. I was playing some weekend big band jobs, Mraz recalls, and this bass player wasn't very good. Either that or he was a genius, he laughs, because he seemed to always play the wrong notes. Every now and then you'd think he must play some of the right notes, just by accident. But, no. So I picked up the bass on a break and tried to find the notes. I thought, 'It's not that difficult.' So I got a bass and began playing a little bit. Next thing I knew, I was in the Prague Conservatory.
During that time he was performing with the top jazz groups in Prague. After finishing his studies George went to Munich and played clubs and concerts throughout Germany and Middle Europe with Benny Bailey, Carmel Jones, Leo Wright, Mal Waldron, Hampton Hawes, Jan Hammer and others.
Yet at the same time Mraz was deeply moved by the Voice Of America radio broadcasts of Willis Conover, who was his connection to a vast new world of possibilities across the ocean. The first jazz I ever heard was actually Louis Armstrong. They had an hour of his music on Sundays in between all these light operettas and stuff they play in Prague. Then the strange voice of Satchmo singing was quite a shock. 'How can he get away with a voice like that?' I thought. But by the time the hour was over I decided I liked it better than anything I heard that day, so I started looking into jazz.