Crossword clues for Set of pipes 4 letters:STOPGraduated set of pipes in an organ.STOPSet of pipesSTOPSet of organ pipesSTOPGraduated set of organ pipes.STOPTuned set of organ pipesORGANSet of pipes?ORGANSet of pipes in a church performance?ECHOSTOPSSets of organ pipes.STOPSTuned sets of organ pipes.