Augmented Fourth Intervals

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Augmented Fourth Intervals

A augmented fourth interval is the distance from any note to a note six half-steps away either ascending or descending. It is a dissonant interval.

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

A Augmented Fourth Interval on the Guitar

An augmented fourth above A is D#.

Guitar tablature of A augmented fourth intervals

Bb Augmented Fourth Interval on the Guitar

An augmented fourth above Bb is E.

Guitar tablature of A#/Bb augmented fourth intervals

B Augmented Fourth Interval on the Guitar

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

Note: Cb is a B. A major second above Cb is F.

Guitar tablature of B augmented fourth intervals

C Augmented Fourth Interval on the Guitar

An augmented fourth above C is F#.

Note: B# is a C. A augmented fourth above B# is Ex (double sharp).

Guitar tablature of C augmented fourth intervals

Db (C#) Augmented Fourth Interval on the Guitar

An augmented fourth above Db is G and an augmented fourth above C# is Fx (F double sharp). Notice that Fx is actually a G note. However, a G above C# is a diminished fifth. Also notice that a perfect fourth above B is E. An augmented fourth is one more half-step than a perfect fourth. Therefore, to indicate this is an augmented fourth an E# is used.

Guitar tablature of C#/Db augmented fourth intervals

D Augmented Fourth Interval on the Guitar

An augmented fourth above D is G#.

Guitar tablature of D augmented fourth intervals

Eb (D#) Augmented Fourth Interval on the Guitar

An augmented fourth above Eb is A.

An augmented fourth above D# is Gx (double sharp). Notice that Gx is actually an A note. However, an A above D# is a diminished fifth. Also notice that a perfect fourth above D# is C. An augmented fourth above G# is one more half-step than a perfect fourth above G#. Therefore, to indicate this is an augmented fourth a Cx is used.

Guitar tablature of D#/Eb augmented fourth intervals

E Augmented Fourth Interval on the Guitar

An augmented fourth above E is A#.

Note: Fb is an E. An augmented fourth above Fb is Bb.

Guitar tablature of E augmented fourth intervals

F Augmented Fourth Interval on the Guitar

An augmented fourth above F is B.

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

Guitar tablature of F augmented fourth intervals

F# (Gb) Augmented Fourth Interval on the Guitar

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

An augmented fourth above Gb is C.

Guitar tablature of F#/Gb augmented fourth intervals

G Augmented Fourth Interval on the Guitar

An augmented fourth above G is C#.

Guitar tablature of G augmented fourth intervals

Ab (G#) Augmented Fourth Interval on the Guitar

An augmented fourth above Ab is D.

An augmented fourth above G# is Cx (double sharp). Notice that Cx is actually a D note. However, a D above G# is a diminished fifth. Also notice that a perfect fourth above G# is C. An augmented fourth above G# is one more half-step than a perfect fourth above G#. Therefore, to indicate this is an augmented fourth a Cx is used.

Guitar tablature of G#/Ab augmented fourth intervals

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