A Czech jazz bassist who is known for his extensive career in the USA.

His first album as a leader, Infinite Search, re-released with minor changes as Mountain in the Clouds, featured several key figures from the then-budding jazz fusion movement: John McLaughlin, Herbie Hancock, Jack DeJohnette and Joe Henderson.

A founding member of the group Weather Report, he has worked with Larry Coryell, Jan Hammer, Freddie Hubbard, Miles Davis, Chick Corea, Wayne Shorter, Joe Zawinul, and Jan Garbarek.