Limited & Advanced Chord Analysis

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LIMITED RESULTS ADVANCED RESULTS
Chords submitted

Limited & Advanced Chord Analysis


This tool helps you break down and understand chords. It shows you all possible degrees, keys, chord types, and chord symbols.

You can choose between Limited and Advanced results.

  • Degrees I, II, III, IV, V, VI and VII (European notation)
  • Chord Types, like 'dominant 7th-2nd inversion' or 'half diminished 7th-1st inversion'
  • Chord Symbol, for example 'A7/E'

The database includes:

  • 12 x 16 keys
  • 312 chord types
  • 13,884 chords.

How to analyse a chord

  1. Select the bass note
    • Tap 'BASS', then tap a piano key to set the bass tone.

  2. Add other notes
    • Tap the other keys to add the rest of the notes.
    • To remove a note, just tap it again.

  3. Clear selections
    • Tap 'CLEAR' to reset everything and start fresh.

  4. Tips
    • The order you add notes doesn’t matter—just make sure the bass note is correct.
    • Ignore extra decorative tones (like appoggiaturas).
    • A chord needs at least 2 notes (incomplete chord) and can have up to 5 notes (9th chord).

  5. Analyse
    • Tap 'ANALYSE' to see the results.

  6. How to read the results
    • The tool will show you:
    • The chord’s degree (like I, IV, etc.).
    • The key it belongs to.
    • The type of chord (e.g., dominant 7th, diminished, etc.).
    • The chord symbol (e.g., Cm7/G).

Example chord: C (Bass) - Eb - G - A
or tap 'BASS', and keys 1, 4, 8, 10
next tap 'ANALYSE'

The 'LIMITED RESULTS' will be shown, tap 'ADVANCED RESULTS' to get to the advanced results.

Tap 'PDF' to generate a pdf file with both limited and advanced results.

How to read the outcome 

*** Bb Major
VII6/5, half diminished 7th, 1st inversion
C•Eb•G•A, C is bass, A is root, symbol is Am7b5/C
** Ab Major Neapolitan (lowered 2)
III7, minor diminished 7th,
C•Eb•G•Bbb, C is bass, C is root, symbol is Cmb7

The stars indicate the probability. *** = probably, ** = less likely, * = rare. In this case VII6/5 in Bb Major is probably right. However, the app can't detect how original or difficult the score is, so always be on your guard.

An unknown chord can be a chord with an ornamental tone or an inverted (incomplete) 9th chord. Inversions of 9th chords are theoretically impossible.

You can not use this app to analyse church modes like Dorian or Lydian. However, chords that are being called 'Phrygian' usually are Neapolitan chords.

Major
Major Neapolitan (lowered 2)
Major Neapolitan (low. 2 and low. 6)
Major Moll-Dur or Borrowed Chord (low. 6)
Major Moll-Dur or Borrowed Chord (low. 6 and low. 3)
Major + raised 2
Major Moll-Dur or Borrowed Chord (low. 6) + raised 4
Major Moll-Dur or Borrowed Chord (low. 6 and low. 3) + raised 4
Minor Natural
Minor Harmonic
Minor Melodic
Minor Natural + Neapolitan (low. 2)
Minor Harmonic + Neapolitan (low. 2)
Minor Melodic + Neapolitan (low. 2)
Minor Natural + raised 4
Minor Harmonic + raised 4

The same applies to so-called 'special' keys, which are often major or minor keys with an incidental alteration.

In the above 16 keys all chords can be analysed, unless you make up a chord yourself, and even then you'll be suprised when you analyse your chord with this app.

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