Members: Stan Tracey, Michael Baird, Gijs Hendriks, Bert Van Erk

Gijs Hendriks-Stan Tracey Quartet was a Dutch-British free improvised jazz ensemble, formed in 1979 at the Jazz Jamboree Festival in Warsaw by saxophonist Gijs Hendriks and pianist Stan Tracey from London. After participating in Jazz Jamboree '79, the newly established quartet met again to play three concerts in the Netherlands in May 1980.

Gijs Hendriks-Stan Tracey Quartet
Gijs Hendriks - Soprano, alto, tenor saxophones.
Stan Tracey - Piano.
Bert Van Erk - Bass.
Michael Baird - Drums.