Instant Composers Pool (ICP) is an independent Dutch jazz and improvised music label and orchestra.
In 1967 saxophonist Willem Breuker, pianist Misha Mengelberg and drummer Han Bennink founded the ICP label in Amsterdam.
Mengelberg and Bennink had been playing together since 1961 and found success as members of Eric Dolphy's quartet in 1964, as documented on his live album Last Date.
Mengelberg and Bennink intensified their collaboration and, widening their own musical project as the Instant Composers Pool Tentet with saxophonist Peter Brötzmann and cellist Tristan Honsinger.
[1] Under Mengelberg's guidance, the ICP Orchestra made studies of and recorded albums of music by jazz greats Duke Ellington, Herbie Nichols and Thelonious Monk.