Organ (music)
From Tardis Wiki, the free Doctor Who reference
Organs were a type of keyboard instrument. The Doctor amplified the noise of Southwark Cathedral's organ with his sonic screwdriver. The noise distracted Richard Lazarus who then fell from the tower and died. (DW: The Lazarus Experiment)
When an Aeolian travelled to Earth, she went to the High Cross Cathedral to call for her mate, causing storms across the United Kingdom. K9 Mark 2 and Starkey tracked her down and after she was stunned by CCPCs, Starkey played a tune he'd been humming recently on the organ, succeeding in contact her mate, the two Aeolians then left Earth. (K9TV: Aeolian)