This tutorial will explain the concept of scales and how they are constructed.
Particularly, we will learn about the Major Scale.
“Scale” literally means “Staircase”.
The smaller unit, called a Half Step, is the distance from one note to the nearest note next to it. A Half Step is also known as a Semitone or a Minor 2nd.
The larger unit, called a Whole Step, or Major 2nd, is equal to two half steps.
Whole, Whole, Half, Whole, Whole, Whole, Half.
That is, 2 whole steps, 1 half step, 3 whole steps, 1 half step.
A more general rule that works for all keys is that the half steps are between degrees 3-4 and 7-8.