Piano Chord Identifier & Chord Finder

You’re sitting at the keys, your fingers fall into a dark, moody voicing that sounds incredible, and you have no idea what it is. Is it a minor 9? An inverted major 7? A half-diminished chord with a tension note on top?

When you're transcribing a song by ear or writing a progression, chord charts are useless because they only work in one direction: they give you a symbol and tell you where to put your hands. This piano chord identifier and reverse chord finder works the other way around. Tap the keys you're playing, and it instantly names the chord, breaks down the intervals, and shows you what scales fit over it.

Working Backward: From Mystery Notes to Chord Names

Most chord books treat harmony like a spreadsheet. In reality, chords are just stacks of musical tension built up from a bass note:

• Punch in what you hear: Tap any combination of keys across the keyboard. Don't worry about octaves or clean spacing—the engine handles tight clusters and wide two-handed voicings alike.
• Instant interval breakdown: Instead of counting semitones on your fingers, the analyzer maps out the exact formula beneath your hands—root, minor third, flatted fifth, natural ninth.
• Naming the beast: From simple pop triads to crunchy 11ths and 13ths, the tool compares your notes against harmonic formulas to give you the clean, standard notation you’d write on a lead sheet.
• Finding the bass: If your thumb or your bass player is playing a note that isn’t the root, the engine immediately flags the inversion and writes it as a slash chord (like C/E or G/B).

Slash Chords & Inversions: Why Your Bass Note Changes Everything

A chord isn't just a static recipe of notes; the lowest note in the room dictates how the entire harmony feels:

• Root Position (C): C is in the bass (C-E-G). Solid, grounded, and stable.
• First Inversion (C/E): The third sits in the bass (E-G-C). Instead of leaping around the keyboard, using a first inversion lets you build smooth, walking basslines that glide into the next chord.
• Second Inversion (C/G): The fifth anchors the low end (G-C-E). It gives the chord an unstable, suspended energy that wants to tumble forward into a cadence.

If you’re trying to turn clunky block chords into fluid voice leading, dive into our breakdown on what chord inversions are and how to use them.

Why Does C6 Have the Exact Same Notes as Am7?

Ever input a chord and see two different names pop up? You didn’t break the tool—that’s enharmonic equivalence in action.

Both C6 (C - E - G - A) and Am7 (A - C - E - G) share the exact same physical piano keys. Which one it actually is depends entirely on what the bass is doing and where the song is heading:

• If the tune is in C major and resolves home with a C in the bass, it's a C6.
• If your bass player is holding down an A or moving through a 2-5-1 in G major, that exact same grip functions as an Am7.

The analyzer tests multiple candidate roots and shows you both identities so your charts make musical sense in context.

Stealing Piano Voicings for Guitar & Songwriting

Even if piano isn't your primary instrument, the linear layout of a keyboard makes harmonic relationships ten times easier to see than a fretboard:

• Transcribing records: When you can't quite catch what a pianist or guitarist is playing on a track, slow it down and pick out the notes one by one on the virtual keys until the chord clicks.
• Transposing for vocalists: Once you uncover the harmonic bones of a tune, you can shift the whole progression into a key that suits your singer's natural range. Check out our guide on how to transpose a song across all 12 keys.
• Building smarter progressions: Stuck looping the same four chords? Use the Circle of Fifths to find secondary dominants and borrowed chords that spice up your verses.

Hear It Strummed: Audio Playback & Scale Modes

Never write harmony with your eyes alone. Tap the Play button or hit any chord pill in the dictionary to hear our synth engine arpeggiate or strike the voicing with authentic harmonic weight.

Once you’ve locked down the right grip, check out the Suggested Scales section. Seeing which modes (like Dorian over a minor 7th, or Mixolydian over a dominant chord) overlay across your notes is the fastest way to map out melodic fills and solos without getting lost.