GRRR JAMMING SQUEAK is a public artwork by Paola Pivi located at the Coolsingel Rotterdam and operates as a professional recording studio. The studio is open to everyone. There is one single rule: Musicians have to play along with the recorded sound of animals. GRR JAMMING SQUEAK is part of SIR’s long-term plan for the Coolsingel axis (2009-2012). In preparation of the major redevelopments of this urban boulevard, SIR offers a program of temporary and permanent art projects.