① Look Up the Notes of a Chord (202 types)

[Basic Operation]

Choose any item from the dropdown lists.
The results switch automatically.

The chord search also accepts slash chords such as “F/G” and “Cmaj7/E.” The note after the slash is treated as the bass note and is retained in the notes, playback, history, and progression sets.

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[Note Notation]

Note names can be shown in four notation systems: English/American, Italian, Japanese, and German.

If you are a beginner, the Italian notation (Do, Re, Mi...) may feel more familiar.

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[Chord Information]

The pronunciation and detailed information of the chord are displayed.
For chords with a dominant function, the main resolution targets are also displayed.
* The main resolution targets are determined from the augmented 4th interval contained in the chord.

Chords displayed in red are hybrid chords. (Example: B♭/C)
Blue chords are USTs (upper structure triads). (Example: D/C)

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[Chord History]

Up to five recently displayed chords are recorded automatically. Click (tap) a chord in the history to display it again.

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[Progression Set]

Choose any progression registered on this site under “Preset progressions” and load it into the current set. Presets can be used without saving them on your device.

Use "+ Add Current Chord" to arrange the displayed chords in order and create a chord progression. Use a chord name or the “◀” and “▶” buttons to move between chords in the set.

Use “♭ Down semitone” and “♯ Up semitone” to transpose the entire progression set one semitone at a time.

You can name and save a progression in this device's browser, then load or delete it later. Chord history and progression sets are shared between the chord-notes and fretboard pages in the same browser.

* Nothing is saved to a server or the cloud. Data is not synced to other devices or browsers and is removed if you clear this browser's site data.

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[Checking the Sound]

Click (tap) the "Chord" button or a note name to play the chord.
Click (tap) the "Arpeggio" button or the keyboard to play the chord as an arpeggio.

To stop the sound while it is playing, click (tap) anywhere on the screen.

The volume can be adjusted with the "Volume" bar.

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[If You Hear No Sound]

- Check your device's volume and mute settings.
- Make sure the on-screen "Volume" bar is not set to 0.
- Try reloading the page.

If you still hear no sound after trying the above, we would appreciate it if you could let us know via the contact form.

[Handling of Enharmonic Equivalents]

This page does not make strict enharmonic distinctions.

Reference article: Enharmonic Equivalents Explained [What Is the Difference Between "C#" and "D♭"?] (Japanese)

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[Accuracy of Information]

The information provided here may not be accurate.

Of course, we take the greatest care in publishing information and materials.
However, we cannot guarantee the accuracy of the published content.

If you find any incorrect information, we would appreciate it if you could let us know via the contact form.

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[Disclaimer]

We accept no responsibility whatsoever, for any reason, for any damage arising in connection with the use or download of the information and materials published on this site.

[Why Know the Main Scales Containing a Chord's Notes?]

A chord's role changes depending on the surrounding context and its position relative to the key in use.
Information about the main scales containing a chord's notes is useful as a reference for modal interchange and modulation.

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[About Negative Harmony Theory]

A concept that divides the circle of fifths between the tonic of the key and its perfect 5th, holding that "notes in symmetrical positions are interchangeable".
It is a theory said to have been proposed by Ernst Levy and popularized by Jacob Collier.

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[About Quartal Chords]

A "quartal chord (quartal harmony)" is a chord built by stacking notes in 4ths from the root.
Here, "4th" refers to the "perfect 4th" and the "augmented 4th". (The "diminished 4th" is enharmonically equivalent to the "major 3rd".)

There is not yet any widely agreed-upon chord-name notation for quartal chords.
Therefore, the chord names used on this site are only one example and, at least as of 2024, cannot be called standard notation.

[Web]

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[Books]

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