Augmented Eleventh
A11
intervalAt a Glance
- Formula:
- 11 augmented
- Notes:
- C, F#
Piano
Fretboard
A compound interval - larger than an octave. Shown here within a single octave, same as its simple equivalent.
What It Is
An octave plus an augmented fourth (18 half steps), enharmonically equal to a tritone one octave up.
How It Functions
The raised 11th used in place of a plain 11th to avoid clashing with the major 3rd; defines the sharp-11 tension in jazz voicings like a Dominant 7#11 chord.
Real Song Examples
Real song examples aren't available yet - check back soon.