# Perfect Fourth Intervals

# Perfect Fourth Intervals

A **perfect fourth** interval is the distance from any note to a note five
half-steps away either ascending or descending.
It is a consonant interval.

*Be sure your guitar is in tune before playing the following examples.*

## A Perfect Fourth Interval on the Guitar

A perfect fourth *above* **A** is **D**.

## Bb (A#) Perfect Fourth Interval on the Guitar

A perfect fourth *above* **Bb** is **Eb**.

A perfect fourth *above* **A#** is **D#**.

## B Perfect Fourth Interval on the Guitar

A perfect fourth *above* **B** is **E**.

*Note: Cb is a B. A perfect fourth above Cb is Fb.*

## C Perfect Fourth Interval on the Guitar

A perfect fourth *above* **C** is **F**.

*Note: B# is a C. A perfect fourth above B# is E#.*

## Db (C#) Perfect Fourth Interval on the Guitar

A perfect fourth *above* **Db** is **Gb**.

A perfect fourth *above* **C#** is **F#**.

## D Perfect Fourth Interval on the Guitar

A perfect fourth *above* **D** is **G**.

## Eb (D#) Perfect Fourth Interval on the Guitar

A perfect fourth *above* **Eb** is **Ab**.

A perfect fourth *above* **D#** is **G#**.

## E Perfect Fourth Interval on the Guitar

A perfect fourth *above* **E** is **A**.

*Note: Fb is an E. A perfect fourth above Fb is Bbb (double flat).*

## F Perfect Fourth Interval on the Guitar

A perfect fourth *above* **F** is **Bb**.

*Note: E# is an F. A perfect fourth above E# is A#.*

## F# (Gb) Perfect Fourth Interval on the Guitar

A perfect fourth *above* **F#** is **B**.

A perfect fourth *above* **Gb** is **Cb**. Notice that Cb is actually a B note.
However, a B above Gb is an augmented third. Therefore, to indicate
this is a perfect fourth a Cb is used.

## G Perfect Fourth Interval on the Guitar

A perfect fourth *above* **G** is **C**.

## Ab (G#) Perfect Fourth Interval on the Guitar

A perfect fourth *above* **Ab** is **Db**.

A perfect fourth *above* **G#** is **C#**.