Music Theory Tools

Chord Identifier

Select notes to identify the chord. Supports triads, 7th chords, extended chords, and inversions.

Identified Chord

-

Select at least 3 notes

Selected Notes

None selected

Chord Formula

-

Common Chord Types

Chord Type Symbol Formula Example (C)
Major C 1 - 3 - 5 C - E - G
Minor Cm 1 - ♭3 - 5 C - E♭ - G
Diminished Cdim 1 - ♭3 - ♭5 C - E♭ - G♭
Augmented Caug 1 - 3 - #5 C - E - G#
Major 7th Cmaj7 1 - 3 - 5 - 7 C - E - G - B
Minor 7th Cm7 1 - ♭3 - 5 - ♭7 C - E♭ - G - B♭
Dominant 7th C7 1 - 3 - 5 - ♭7 C - E - G - B♭
Sus4 Csus4 1 - 4 - 5 C - F - G
Sus2 Csus2 1 - 2 - 5 C - D - G

Piano Chord Finder and Chord Identifier

Universal Chord Analyzer for Piano, Keyboard, MIDI and Music Composition

Identify Chords Instantly With a Theory-Accurate Piano Chord Finder

Diamond Audio City’s Piano Chord Finder is an advanced chord identifier and chord analyzer designed for musicians navigating the digital age. This online tool identifies chords from notes using real music theory, making it reliable for piano chords, keyboard chords, MIDI workflows, DAWs, songwriting, and music composition.

Unlike basic chord charts or chord dictionaries, this tool functions as a reverse chord finder, allowing musicians to enter notes and receive accurate chord identification in real time, including inversions, voicings, and harmonic context.

How to Use This Piano Chord Finder

Using the chord finder is straightforward and designed for both beginners and advanced musicians.

  • Enter notes manually from a keyboard layout or note list
  • The chord analyzer calculates intervals and root position
  • Chord quality, inversions, and voicings are identified
  • Alternate chord interpretations and substitutions are displayed

This workflow mirrors professional harmonic analysis used in music notation, MIDI editors, and modern DAWs.

What Is a Chord Identifier and Reverse Chord Finder

A Chord Identifier, also known as a piano chord finder or reverse chord finder, identifies chords by analyzing the relationships between notes rather than showing chord shapes.

This approach is grounded in music theory and harmonic analysis, making it suitable for piano lessons, ear training, song transcription, and music arrangement across instruments.

Why Note-Based Chord Identification Is More Accurate

Professional chord identification relies on notes, not raw audio guessing. Audio recognition often fails due to passing tones, dense arrangements, jazz harmony, and complex voicings.

By analyzing notes directly, this piano chord finder preserves voice leading, non-diatonic chords, modal interchange, and secondary dominants, delivering consistent results for serious musicians and teachers.

Piano Chord Finder for Keyboard and Piano Players

For pianists, this tool works as a precise piano chord identification system.

  • Supports triads, extended harmony, inversions, arpeggios, suspensions, augmented chords, diminished chords, and advanced voicings
  • Keyboard players can analyze chord shapes without relying on memorized diagrams, strengthening understanding of harmony and composition

Universal Chord Finder for Guitar, Ukulele and All Instruments

Chords are not instrument-specific shapes. They are harmonic relationships.

This chord finder works for guitar, ukulele, and alternate tunings because it is based on music theory rather than fretboard assumptions. The same notes create the same harmony regardless of instrument.

MIDI and DAW Workflow Integration

Producers and composers working with MIDI and DAWs can use this chord analyzer to convert note data into chord names instantly.

This supports music production workflow integration in composition, arrangement, plugins usage, and harmonic mapping inside digital audio environments.

Chord Types and Harmonic Structures Supported

Core Harmony

  • Major and minor triads
  • Augmented and diminished chords
  • Root position and inversions

Extended and Jazz Harmony

  • Seventh chords
  • Ninth, eleventh, and thirteenth chords
  • Jazz voicings and variations

Advanced Music Theory

  • Secondary dominants
  • Modal interchange
  • Borrowed chords
  • Passing chords and cadences

Chord Inversions, Voicings and Voice Leading

Understanding Chord Inversions and Voice Leading is essential for professional-sounding music.

This piano chord finder automatically detects inversions and voicings, helping musicians create smoother chord progressions, better keyboard movement, and clearer harmonic flow in songwriting and composition.

Chord Progressions, Keys and Circle of Fifths Awareness

Beyond single chords, the tool supports understanding of chord progressions and harmonic direction.

Musicians can analyze progressions using relative minor relationships, Circle of Fifths logic, dominant chords, and substitution techniques, making it easier to build creative chord progressions that work musically.

Songwriting and Music Composition Applications

Songwriters use piano chord finders to explore alternate progressions, test chord substitutions, and compose melodies with harmonic clarity.

Whether composing pop songs, jazz pieces, or experimental music, understanding harmony accelerates the creative process and improves musical confidence.

Learning, Ear Training and Music Theory Practice

For students and teachers, this chord finder supports music theory learning, piano lessons, ear training, and practice.

By confirming chord identification visually, musicians strengthen listening skills, theoretical understanding, and long-term retention without replacing active musical listening.

Comparison With Other Chord Tools

Many musicians also explore tools such as Piano Companion, Chordify, Hooktheory, Mapping Tonal Harmony, Scaler 2, and other chord analyser software.

Most alternatives focus on visual aids, mobile apps, or AI in music. Diamond Audio City focuses on theory accuracy, transparency, and universal usability without subscriptions or downloads.

Honest Scope and Limitations

This piano chord finder works best when notes or MIDI data are available. It does not claim perfect mixed-song audio recognition.

Accuracy comes from harmonic analysis and music theory, not artificial guessing or hidden automation.

Frequently Asked Questions

A piano chord finder helps musicians understand harmony by identifying chords from notes. It supports learning music theory, analyzing piano chords, improving chord progressions, and reducing dependence on memorized chord shapes during composition and practice sessions.

A piano chord finder transforms music learning by connecting theory to practice. It makes chord identification visible, reinforces inversions and voice leading, supports ear training, and helps students understand harmony faster through real-time feedback.

Piano chord finders help songwriters explore creative chord progressions, test substitutions, and understand harmonic movement. This clarity improves melody writing, supports composing decisions, and reduces creative blocks during songwriting and music composition.

A reverse piano chord finder identifies a chord from selected notes instead of showing notes from a chord name. It is commonly used for harmonic analysis, transcription, voicing interpretation, and understanding complex piano and keyboard chords.

Yes. A piano chord finder improves ear training by confirming what musicians hear. It strengthens interval recognition, chord quality awareness, and harmonic memory, helping learners connect listening skills with formal music theory concepts.

Yes, the chord identifier can process MIDI note inputs. This allows composers and producers to quickly identify chords from digital compositions, improving workflow efficiency when arranging, transcribing, or analyzing harmonic content inside DAWs.

Absolutely. The tool supports complex jazz harmonies, including seventh, ninth, eleventh, and thirteenth chords, as well as inversions and voicings, making it perfect for advanced harmonic analysis and real-time learning in jazz or contemporary music composition.

Yes. Beginners can use this chord finder to learn piano chords, inversions, and voicings. The visual note selection and real-time feedback provide practical learning while reinforcing music theory fundamentals in a simple, user-friendly interface.

Yes, the chord finder is instrument-agnostic. It identifies chords based on notes rather than instrument shapes, making it equally effective for guitar, ukulele, or any other instrument where the chord notes are known or input manually.

Final Thoughts

A chord is not a diagram or a preset.
A chord is harmony.

By focusing on music theory, harmonic analysis, and real musical relationships, Diamond Audio City’s Piano Chord Finder serves musicians, teachers, producers, and songwriters navigating their musical journey in the modern digital age.

This is not just software.
It is a practical music theory tool built for real musicians.

Related Music Theory Tools