Known best for his work during the 1970s, '80s, and '90s with the British jazz-rock group Brand X, Jones also played bass for a New York band called Tunnels and recorded a solo album titled Cape Catastrophe.
Early in his career, he performed with poet Adrian Henri's band The Liverpool Scene. Later, he joined a Canterbury-based fusion band called Soft Machine.
He famously performed on a fretless electronic bass of the Wal brand.
A native of Llandrindod Wells, Wales, he later lived in England and the United States.
He and drummer and vocalist Phil Collins were both members of Brand X.