Minor Ninth

m9

interval

At a Glance

Formula:
9 minor
Notes:
C, C#

Piano

Fretboard

eBGDAE

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 minor second (13 half steps) - the note a half step above the octave.

How It Functions

A tense compound interval; defines the flat-9 alteration in altered dominant chords like a Dominant 7b9.

Real Song Examples

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