Chords Pad2.9.1 - App Store

This app can easily check the sound and the display on the keyboard of the chord tone of musical chords.
We have prepared various UI for checking the chords. Use the method that suits you.

- Pad Display - Chord List
- Pad Display - Custom Pad
- Chord Progress

[Chord List]
You can select from the following patterns for the chord button list display. It supports chord reordering and toggling chord visibility.
- Each key : Displays all types of chord patterns in a list for each key
- Vertical : Displays all types of chord patterns vertically and each key horizontally
- Horizontal : Displays all types of chord patterns horizontally with each key vertically

[Custom pad]
Larger buttons than the chord list are arranged. You can freely set the chord and key for each button.

[Chord Progress]
Displays a list of typical chord progressions. The chord buttons are arranged so that you can easily check the sound of the chord progression, and it supports chord changes. It also supports root shifts.

In either case, when the chord button is tapped, the selected chord is played and the chord tone is displayed on the keyboard.
* If you'd like to display all the chord patterns including tension (b9, # 9, 11, # 11, b13, 13), You need In-App Purchase.

[Chord inversion area]
When you select a chord in "Chord List" or "Custom Pad," its root position and inversions appear below the chord button area.
Example:
- CM7 : C E G B (Root position)
- CM7/E : E G B C
- CM7/G : G B C E
- CM7/B : B C E G
The note after "/" indicates the bass note. Scroll horizontally through the inversions and tap a button to play it and display its notes on the keyboard.
The inversion area for "Custom Pad" can be shown or hidden with "Inversion display" in Settings.

Other features:
- Supports chord reordering and toggling chord visibility in the "Chord List". ([Settings screen] - [Edit Chord List])
- The keyboard can be slid with the slider. (range: C2 ~ C7) And the keyboard also supports playing.
- There are 28 types in all kinds of sound. (It is 9 kinds can be used in the initial state. To use all type, you need In-App Purchase.)
- Supports Bluetooth MIDI connection.
- Supports sending MIDI messages (note on / off).

Chord list:
M, 7, 7(b5), 7(#5), 6, 6 9, 9, add9, M7, M9, M7(b5), M7(#5), m, m6, m6 9, m(#5), m add9, m7, mM7, m7(b5), m7(#5), m9, mM9, aug, dim, dim7, sus4, 7sus4, 9sus4, M7sus4, M9sus4, sus2, 7sus2, M7sus2
(To use below, you need In-App Purchase.)
7(b9), 7(#9), 7(#11), 7(b13), 7(13), 7(b9 #11), 7(b9 b13), 7(b9 13), 9(#11), 9(b13), 9(13), 7(#9 #11), 7(#9 b13), 7(#9 13), M7(#11), M9(#11), M7(13), M9(13), m7(11), m7(13), m9(11), m7(b5 11), m7(b5 13)

If you would like to create more flexible chord progressions or compose music using chords, try iOS app "Piano Chords Master".

Version History Fixed the display layout. (This fixes an issue on some devices where buttons in the code editing area overlapped with banner ads.)
Please update the app. 2.9.1 Sep 24 - Added a “Chord Inversion Area” to the Custom Pad. The root position and inversions of the selected chord are displayed below the chord button area.
(You can show or hide it using “Inversion Display” in Settings.)
- Added support for toggling the keyboard display on and off.
- Updated the minimum supported OS version to iOS 18. 2.9.0 Sep 13 - Added a feature to display the root position and inversions of the selected chord as a list of buttons below the chord list. (Example: CM7, CM7/E, CM7/G, CM7/B)

- Changed the keyboard display so chord tones outside the actual playback positions appear dimmer, making the played notes easier to identify. 2.8.0 Aug 4 Added sus2 chord types. (sus2, 7sus2, M7sus2) 2.7.0 Jul 2 Added support for saving and loading complete chord sets configured for the Custom Pad. 2.6.0 May 1 Confirmed to work on iOS 26 and iPadOS 26. 2.5.2 Jan 26 Fixed some minor bugs. 2.5.1 11/18/2025 Supports chord reordering and toggling chord visibility in the "Chord List".
(Settings available in [Settings screen] - [Edit Chord List]) 2.5.0 11/02/2025 The function "Available sending MIDI message" has been removed from the in-app purchase.
Please take this opportunity to try it out. 2.4.0 04/09/2025 Fixed some minor behavior. 2.3.3 04/08/2025 Changed the order of items on the settings screen. ("Keyboard mark type" and "Accidental type (b / #)" display switch has been moved up.) 2.3.2 03/18/2025 Fixed the display surface. 2.3.1 01/19/2025 Added new function "Custom Pad".

Larger buttons are arranged than in "Chord List". (We plan to add a function to change the number of buttons in a future update.)
Each button can be set to a chord and key. 2.3.0 12/21/2024 The system has been updated. 2.2.1 07/31/2024 Added the ability to edit chords on the chord progression screen.
(Example: G7 -> G7(b5) ) 2.2.0 03/18/2024 Confirmed on iOS 17. 2.1.4 01/05/2024 Separated the items related to "Bluetooth MIDI" in the setting screen.
- iPhone: Select "Settings" or "Settings (Bluetooth MIDI)" after tapping "Settings" button.
- iPad: Added the "Bluetooth MIDI Settings" button to the left of the "Settings" button. 2.1.3 07/08/2023 Adjusted note-on velocity value for MIDI sending in chord playback. 2.1.2 06/27/2023 Fixed for Ver.2.1.0. (Please update.) 2.1.1 06/14/2023 Added a function that allows you to select whether to send "Note Off" (MIDI message) when you release the keyboard or the chord button.
(To use this, you need In-App Purchase.) 2.1.0 06/13/2023 In Ver.2, added "Chord Progress" screen.
It places chord buttons for typical chord progressions, so you can easily check the sound of the chord progression.

Added a process (only once) to display the "Chord Progress" introduction dialog when the app starts.
(Select [Progress] in [Chord List/Progress] on the settings screen.) 2.0.1 02/14/2023 Added "Chord Progression" screen.
It places chord buttons for typical chord progressions, so you can easily check the sound of the chord progression.
(We'll be updated sequentially types of chord progressions.) 2.0.0 02/12/2023 Fixed for display. 1.4.4 11/20/2022 Updated the system of the banner ads. 1.4.3 10/07/2022 Updated the system side. 1.4.2 07/25/2022