Scale – A number of notes arranged in a specific order of their pitch (frequency)
To remember what scale means use the following mnemonic:
I scaled (scale) the wall using the notes arranged in a specific order.
A pitch of a note can be measured in a unit called hertz. A note that is vibrating at 256Hz will be caused by a sound wave that vibrates at 256 times a second. This will be middle C on the piano.
In music, a scale is a set of notes in a specific order of their pitch. If the pitch becomes higher it is called an ascending scale. If the pitch becomes lower it is called a descending scale.
The steps between the pitches are measured in:
Tones = Whole step
Semitones = Half step
The sequence of steps will be different for different scales.