INTERVALISy CHORDS. AND EAR TRAINING. 17

Primary Triads.

a.

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b

The tonic triad is designated by the Roman numeral I, written

large.

The dominant triad is designated by the Roman numeral V,

written large.

The subdominant triad is designated by the Roman numeral

IV, written large.

The close relation of the primary triads to each other is

shown in Example 15, c.

The root of the tonic triad is the fifth of the subdominant triad.

The root of the dominant triad is the fifth of the tonic triad.

Notice that a triad can belong to more than one key.

A chord that has three tones can have three positions. When

the root of the chord is the lowest tone, the chord is in the first

position; when the third of the chord is the lowest tone, the

chord is in the second position; when the fifth of the chord is

the lowest tone, the chord is in the third position.

Triads in their First, Second, and Third Positions.

First Second Third First Second Third First Second Third

position.position.position.position.position.position.position.position.position.

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If in a chord you have two tones that are a fourth apart the

upper one is the root:

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Open and Close Position of Triads.

The tones C, E, G term the chord of C. They form the chord

of C whether they are played close together or far apart. If you

should play C, e, these three tones, although so far apart,

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