Johnny Gertze was born in the year 1937. He was a South African jazz musician (double bass , trumpet , guitar and saxophone). Gertze was a member of the jazz scene of Cape Town, where he first succeeded as a brass player. In the quartet of Tony Schilder , he switched to the bass.
From 1958 Johnny played in the quartet with Kippie Moeketsi, Abdullah Ibrahim and Makaya Ntshoko, with them he became a member of the South African all-stars group Jazz Epistles . With Ibrahim and Ntshoko he went to Europe in 1962 to work there as a jazz musician. The trio played in Zurich for a year and then toured Europe, where he also worked with Sathima Bea Benjamin and later with Joe Haider. In 1968, he returned to South Africa, where he worked with musicians such as Winston Mankunku and Mike Perry. He died of a brain tumor in the year 1983.