Slap Organ
‘Plopp’, well tuned.
Bath slippers and drainpipes - your organ. Take the slippers and carefully hit the pipe openings with them.
The length of the pipe determines the pitch, just like the organ in church. The only difference: in the organ pipe, the sound is produced by the vibration of a draught of air at one edge. Here it is the impact energy and the ‘springing back’ of the air in the pipe that produces the sound.
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