By now, you should already know what Whole and Half steps are.

To review:

Half Step (h): From key to key (no keys in between)
Whole Step (w): Every other key (one key in between)

Equivalents:

2 Half steps = 1 whole step
2 Whole steps = 4 Half Steps
1 Half Step = 1 / 2 Whole Step

Examples:

C to E = 2 Whole Steps / or 4 Half Steps
F to F# = 1 Half Step
G to C = 5 Half Steps / 2.5 Half Steps

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Intervals
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Intervals are important. They form major, minor, and other type of chords.

Do you know what an interval is?

An Interval in music, is the "distance in pitch between two notes."

In this lesson, we will cover only two:

Major Intervals & Perfect Intervals

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Major Third:

Is the distance between the root and the (3) degree a major scale.

For example, in (C major), the root is (C) of course, and the (3) degree is: (E).

(C) and (E) played together is classified as a "major third." This is the beginning of a major chord.

Perfect Fifth:

Is the distance between the root and the (5) degree of a major scale.

For example, in (C major) , the root is (C) , and the 5th degree is: (G)

(C) and (G) played together is classified as a "perfect fifth."