MIDI Chords Player

App and AUv3 MIDI effect for iPhone/iPad
App and AUv3 MIDI effect for Mac

"ChordPolyPad" is a MIDI chords player that allows you to create chord sets from a large internal library, from any combination of notes, or from chords generated randomly. Each set consists of 8 groups of 16 pads, or 2 groups of 64 pads.

In addition to play chords, each pad can generate customizable MIDI controls on its horizontal and vertical axis.

Download the documentation



  • Standalone application and AUv3 MIDI effect plug-in

  • 8 groups of 16 pads or 2 groups of 64 pads by preset (128 pads)

  • MIDI port and MIDI channel assignable for each pad

  • Customizable X/Y controller for each pad

  • Velocity assignable for each chord note

  • Strumming setup by pad

  • Copy and paste for pads and groups

  • Draggable chords directly from library

  • Searching for chords available in a defined scale

  • Random chords for instant inspiration

  • Multitasking

  • Internal sound bank

  • Receiving MIDI notes and control from external devices

  • Send MIDI to a virtual port that can be used as MIDI input by other "Core MIDI" compatible applications

  • Presets manager

  • "Program Change" support

  • Preset sharing support by "AirDrop", "Mail", "Message" and other available services

  • Native iCloud support

  • "iCloud Drive" support in "Files" app on iOS and in "Finder" on macOS

  • Full support of "Split View" and "Slide Over"

  • Undo/Redo

audio units

AUv3 MIDI effect plug-in included

Hosts supporting AUv3 MIDI effect on iPhone/iPad

Logic Pro, Cubasis, Beatmaker, AUM, Audiobus, NanoStudio, Auria Pro, apeMatrix

Hosts supporting AUv3 MIDI effect on Mac

Logic Pro 10.7 or later

chordpolypad screen-1
chordpolypad screen-2

Full MIDI connection support

  • Virtual "Core MIDI" connections between applications

  • Any compatible MIDI interface

  • MIDI over Wifi

  • MIDI over Bluetooth


ChordPolyPad Introduction

A video introduction to ChordPolyPad.

ChordPolyPad Using Random

Creating random chords with ChordPolyPad.

ChordPolyPad Creating Chords

Creating chords with ChordPolyPad.

ChordPolyPad Using Library

Creating chords from ChordPolyPad library.


Presets can be synchronized to iCloud and available on all devices

I could easily imagine using ChordPolyPad in a live context. With a pad preset ready to recall for each song and that ‘full screen’ pad view option, it would be a very neat tool. However, for me, the app is going to find itself well used alongside my other MIDI performance apps both for iPad-based and desktop-based MIDI recording duties. ChordPolyPad is a brilliant tool with a well thought-out interface and, if your keyboard playing sucks as badly as mine, it comes highly recommended.

Music App Blog

A new reference in this category, the best in this category... As I always say, playing chords on an iPad is not easy, for this reason, we need an App to help us, that is what this App is for, but ChordPolyPad is more than this... A new 'bench mark', a Must Have Killer App!!!