Organ Pipe is the simplest form of a wind instrument …
Organ Pipe is the simplest form of a wind instrument. A wooden or metal pipe producing musical sound is known as Organ Pipe. Flute is an example of Organ Pipe. If both the ends of the pipe are open we call it an Open Pipe. However, if the lower end is closed, we call it a Closed Pipe. When we blow in gently, almost a pure tone is heard. This pure tone is called a Fundamental Note. But, when we blow harder, we also hear notes of frequencies that are integral multiple of the frequency of the fundamental note. These frequencies are called Overtones.