If this page does not answer your question, please contact me at

How to Use

Reverse Chord Finder Pro is a reverse chord dictionary. You use this app when you already know which notes you want to play but you don’t know what to call that particular chord.

To use the app, simply select two or more notes and Reverse Chord Finder Pro will show you the names of all the chords that match.

You can select notes on a piano:

On stringed instruments such as guitar or bass, both right-handed and left-handed:

And by using music notation:

These screens all work the same way: you tap on the instrument to select notes and then the app tells you which chords match your selection.

Tap on a chord name to see detailed information about the chord:

Double-tap to get a menu with more options.

Use this toggle button at the bottom of the screen to display additional information about the selected notes:

No additional info on piano and score, fret numbers on string instruments.
Shows the names of the notes for the selected chord.
Shows the major scale steps (or scale degrees) of the notes. These steps make up the formula that the chord is built on. The chord is constructed by applying this formula to the major scale of its root note.

The other buttons at the bottom of the screen do the following:

Plays the selected chord. Hold down the button to play arpeggio.
Erases the selected notes from the screen. You can also shake the phone to erase.
Opens the Favorites screen. You can add chords to the Favorites by double-tapping a chord name and then choosing “Add to Favorites” from the menu.
Opens the Settings screen.

You can scroll an instrument by swiping the screen.



  • The piano has a “C4″ button that lets you center it on Middle C.

String Instrument

  • Tap on the instrument head to change the tuning.
  • Tap in the space besides the fretboard to set the capo.

Music Score

  • Tap on the clef to change the key.

Chord Notation

Reverse Chord Finder Pro uses a common method of notating chords. However, chord notation is not completely standardized so you may not be familiar with some of the symbols.

Here’s a quick guide to the chord notation used.

A chord symbol typically looks like this:

root-note chord-type / bass-note

For example:

C maj7♯5 / B

The root note is the note that the chord is built on, C in the example.

The chord type determines the “quality” of the chord. In other words, whether the chord has a major sound, a minor sound, a dominant 7th sound, etc.

In the above example, the chord type is maj7♯5. This means the chord is a Major 7th chord (maj7) but the 5th tone is raised by a half-step or semitone (♯5). The 5th tone in a regular Cmaj7 chord is G, so the notes for this chord become: C E G♯ B.

The chord type may also include notes that must be lowered by a half-step or semitone (indicated by a ). You may also find the modifier add or /. Both of these symbols mean that the note that follows it must be added to the chord.

If you can’t remember all of this, don’t worry: Reverse Chord Finder Pro will also show a detailed description of the chord.

Finally, if the chord ends with / bass note, it is a so-called “slash chord”. This simply means that a note other than the root note is the lowest note in the chord. The chord from the example is played with a B bass note.

Tip: You can customize the appearance of the chord symbols in the Settings screen.


  • Instrument: Switch between piano, string instruments, and musical score notation.
  • Left-Handed: You can make string instruments right-handed or left-handed, which determines whether the strings go from low-to-high or high-to-low.
  • Number of Strings: You use this to switch between ukulele, mandolin, banjo, guitar, bass, 12-string, and so on.
  • Tuning: Choose a tuning preset for the string instrument. (You can also change the tuning by tapping on the instrument head.)
  • Key: Choose the key signature for the musical score notation. (You can also set the key by tapping on the clef.)
  • Sound: The sounds that is used for playing notes and chords.
  • Play Sounds: Disable this option if you don’t like to hear the notes played as you select them. (You can still play the chords with the Play button.)
  • Major Chord Symbol: How major chords will be notated. You can choose between maj, M or .
  • Minor Chord Symbol: How minor chords will be notated. You can choose between min, m or -.
  • Note Names: If you prefer CDEFGAH instead of the standard note names CDEFGAB, then you can switch here. You can also choose “Fixed Do” Solfeggio (Do-Re-Mi).
  • Enharmonic Equivalents: Some chords will use hard-to-read notes such as F♭ and C♯♯. If this option is on, then such notes will be replaced by simpler ones, in this example E and D, respectively.
App Store Badge
Sign up for the newsletter and receive a free e-book on chord theory:
Follow Reverse Chord Finder:
RSS Feed Twitter