# Augmented Eleventh Intervals

# Augmented Eleventh Intervals

An **augmented eleventh interval** is the distance from any note to a note eighteen
half-steps
away either ascending or descending. Another definition is a
perfect octave plus an
augmented fourth. It is a
dissonant interval.

Playing augmented elevenths on the guitar requires using the pick to strike the low note and the second finger to strike the high note. Strike the low note with a downward motion and strike the high note with an upward motion, as if you are trying to pinch the strings.

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

## A Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **A** is **D#** an octave above A.

## Bb (A#) Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **Bb** is **E** an octave above Bb.

An augmented eleventh *above* **A#** is **Dx** (D double sharp) an octave above A#.
Notice that Dx is actually an E note. However,
notice that a perfect eleventh
above A# is D#. An augmented eleventh is one more half-step than a perfect eleventh.
Therefore, to indicate this is a augmented eleventh a Dx is used.

## B Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **B** is **E#** an octave above B. Notice that E# is
actually an F note. However,
notice that a perfect eleventh
above B is E. An augmented eleventh is one more half-step than a perfect eleventh.
Therefore, to indicate this is a augmented eleventh a E# is used.

*Note: Cb is a B. An augmented eleventh above Cb is F an octave above Cb.*

## C Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **C** is **F#** an octave above C.

*Note: B# is a C. An augmented eleventh above B# is Ex (E double sharp) an octave above B#.*

## Db (C#) Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **Db** is **G** an octave above Db.

An augmented eleventh *above* **C#** is **Fx** (F double sharp) an octave above C#.
Notice that Fx is actually a G note. However,
notice that a perfect eleventh
above C# is F#. An augmented eleventh is one more half-step than a perfect eleventh.
Therefore, to indicate this is a augmented eleventh a Fx is used.

## D Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **D** is **G#** an octave above D.

## Eb (D#) Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **Eb** is **A** an octave above Eb.

An augmented eleventh *above* **D#** is **Gx** an octave above D#.
Notice that Gx is actually an A note. However,
notice that a perfect eleventh
above D# is G#. An augmented eleventh is one more half-step than a perfect eleventh.
Therefore, to indicate this is an augmented eleventh a Gx is used.

## E Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **E** is **A#** an octave above E.

*Note: Fb is an E. An augmented octave above Fb is Bb an octave above Fb.*

## F Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **F** is **B** an octave above F.

*Note: E# is an F. An augmented octave above E# is Ax (A double sharp) an octave above E#.*

## F# (Gb) Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **F#** is **B#** an octave above F#. Notice that B# is
actually a C note. However,
notice that a perfect eleventh
above F# is B. An augmented eleventh is one more half-step than a perfect eleventh.
Therefore, to indicate this is a augmented eleventh a B# is used.

An augemented eleventh *above* **Gb** is **C** an octave above Gb.

## G Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **G** is **C#** an octave above G.

## Ab (G#) Augmented Eleventh Interval on the Guitar

An augmented eleventh *above* **Ab** is **D** an octave above Ab.

An augmented eleventh *above* **G#** is **Cx** an octave above G#.
Notice that Cx is actually a D note. However,
notice that a perfect eleventh
above G# is C#. An augmented eleventh is one more half-step than a perfect eleventh.
Therefore, to indicate this is a augmented eleventh a Cx is used.