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Chord · Reference entry

C♭ Major

Major · C♭ – E♭ – G♭ · intervals P1-M3-P5

The C♭ Major chord contains the notes C♭, E♭, and G♭. Its interval formula is R-M3-P5. The brightest and most stable triad — the foundation of nearly every Western song.

At the keyboard

Cb · Eb · Gb
Flashcards · Chord
Three questions on C♭ Major
Answer on the keyboard, not with buttons. No login required.
C♭

The C♭ Major chord is a three-note chord made up of C♭, E♭, and G♭. It is built from a root, major third, and perfect fifth.

Construction

C♭ Major = Root + Major 3rd + Perfect 5th = C♭ · E♭ · G♭
NoteIntervalDegree
C♭Root1
E♭Major 3rd3
G♭Perfect 5th5

How to Play the C♭ Major

Right Hand (RH)

Place your right hand over the keys with the thumb on the root. Use the fingering: 1 – 3 – 5

Left Hand (LH)

For the left hand, start with your pinky on the root. Use the fingering: 5 – 3 – 1

C♭ Major Inversions

Cb Major piano chord, 1st inversion — E♭, G♭, C♭
The Cb Major chord, 1st inversion, on a piano keyboard.
Cb Major piano chord, 2nd inversion — G♭, C♭, E♭
The Cb Major chord, 2nd inversion, on a piano keyboard.
PositionNotes
Root PositionC♭ – E♭ – G♭
1st InversionE♭ – G♭ – C♭
2nd InversionG♭ – C♭ – E♭

Key Signature

A chord has no key signature of its own, but the C♭ Major is the tonic (I) chord of Cb Major, whose key signature has 7 flats (B♭, E♭, A♭, D♭, G♭, C♭, F♭).

B♭E♭A♭D♭G♭C♭F♭

Order of flats

Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.

BEADGCF

Mnemonic: Battle Ends And Down Goes Charles’ Father

Chords in the Key of C♭ Major

These are the triads built on each degree of the C♭ major scale:

C1C2C3C4BC5C6C7C8D#F#
IB Major (major)
DegreeNumeralChordQuality
1IB MajorMajor
2iiD♭ MinorMinor
3iiiE♭ MinorMinor
4IVE MajorMajor
5VG♭ MajorMajor
6viA♭ MinorMinor
7vii°B♭ DiminishedDiminished

How C♭ Major functions in a key

The same chord takes on a different harmonic role depending on the key it appears in. Here is where C♭ Major sits diatonically across the common keys:

  • In C♭ major, C♭ Major is the I chordthe tonic.
  • In E♭ minor, C♭ Major is the VI chordthe tonic.
  • In G♭ major, C♭ Major is the IV chorda predominant.
  • In A♭ minor, C♭ Major is the III chorda mediant / color chord.

Common C♭ Major Progressions

Pick a progression and press play. Change the key to hear it anywhere — every chord is built from the same theory as the chord pages, so the notes always agree.

Version
Notation
C1C2C3C4BC5C6C7C8D#F#
ICb
80 BPM
Root-position blocks move in leaps. Voice leading holds the common tones and steps the rest —

The most fundamental major progression — the I, IV and V chords. The backbone of countless folk, country, blues and rock songs.

C♭ Major — Frequently Asked Questions

What is the C♭ Major chord on piano?
The C♭ Major chord contains the notes C♭ – E♭ – G♭. On piano, play these notes together to sound the chord.
What notes make up the Cb Major chord?
Cb Major contains three notes: Cb (root), Eb (major third), and Gb (perfect fifth). Cb is enharmonically the same as B on the piano, making Cb Major identical in sound to B Major.
What fingering do I use for Cb Major?
Right hand: finger 1 on Cb/B, finger 3 on Eb, finger 5 on Gb (or 2–3–4 if preferred). Left hand: finger 5 on Cb/B, finger 3 on Eb, finger 1 on Gb. In practice, the fingering is identical to B Major.
Is Cb Major commonly used in music?
Cb Major is very rarely used in published music because its key signature has 7 flats (including Cb itself), which is complex to read. Composers almost universally choose B Major instead (5 sharps), which is enharmonically identical.
What is the difference between Cb Major and B Major?
They are enharmonically equivalent — the same piano keys, different notation. Cb Major uses flat spellings (Cb–Eb–Gb) while B Major uses sharp spellings (B–D#–F#). B Major is far more commonly used in practical piano music.
What songs would be in Cb Major?
No published piano music is practically written in Cb Major. Music that theoretically falls in Cb Major is written in B Major instead. The rare exceptions occur in modulation passages within flat-key works (e.g., after Gb Major) where Cb briefly appears as a local tonic.
Should I practise Cb Major separately?
No — practising B Major completely covers Cb Major since they are physically identical on the piano. The Cb Major chord page on piano.org uses a canonical redirect to B Major for this reason.

Related Tools

Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.

References & Further Reading

The note names, intervals, fingering, and harmony on this chord page are grounded in the following sources. Public domain treatises and scores are linked to their full text; primary data is piano.org's own interval-derived reference dataset — continuously maintained and human-verified, with no fixed publication date.

  1. 1

    Prout, Ebenezer(1889)

    Harmony: Its Theory and Practice

    Public domain treatise
  2. 2

    Goetschius, Percy(1889)

    The Material Used in Musical Composition

    Public domain treatise
  3. 3

    Riemann, Hugo(1896)

    Harmony Simplified (English translation)

    Public domain treatise
  4. 4

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Entry reviewed and maintained by Justin Evans. Corrections are read and applied.Report an error

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