Perfect Eleventh
P11
intervalAt a Glance
- Formula:
- 11 perfect
- 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 a perfect fourth (17 half steps).
How It Functions
The extension added to a dominant ninth to build an eleventh chord; often clashes with the major 3rd a half step below it, which is why it's frequently raised or omitted in practice.
Real Song Examples
Real song examples aren't available yet - check back soon.