The central pitch around which a scale and its associated harmonies is built is called Tonic.
What is tonic?
- As the first and last notes of the scale used to compose a piece of music, the tonic pitch serves as both the focal point of the composing process and the pitch designation for the key.
What is a wave?
- the regular, systematic spread of disturbances from one location to another.
- The waves that travel on water's surface are the most well-known, but waves also exist in sound, light, and the movement of subatomic particles.
- The disturbance periodically oscillates with a set frequency and wavelength in the simplest waves.
Types of waves:
- Transverse and longitudinal waves are the two types of waves.
- While longitudinal waves are similar to those of sound, consisting of alternating compressions and rarefactions in a medium.
- Transverse waves are like those on water, with their surface moving up and down.
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