iPad Screenshots


*** App Store Editor's Choice in 23 countries! ***

Chordion is a fun new way to make music on the iPad. Choose chords with one hand and play melodies with the other - never hit a wrong note! Chordion is great for performing, writing songs, jamming, or having sing-alongs with friends.

*** App Store Best of 2013 "Innovative Music Apps" in China, Japan, and South Korea ***

Chordion makes it easy to play common chord changes in any key. In "auto" mode, Chordion's keyboard follows the chords you play, letting you strum up and down or effortlessly pluck out melodies. The built-in drum machine & arpeggiator help you keep the beat.

More experienced users will love the wide range of customization options - from the layout of chords to synthesis parameters to exotic scales. Chordion's built-in synthesis engine is highly tweekable and easy to use - create echoing lead lines, shimmery chimes, and dreamy drones. Chordion also supports MIDI, allowing you to control other instruments using Chordion's unique interface.

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What's New

Version 1.51

• Fixes a bug that caused a popping sound for some users.

Ratings and Reviews

4.7 out of 5

13 Ratings

13 Ratings

Next generation of musical interface


I don't know many app makers as consistent and intuitive and innovative as Olympia. Chordion is yet again a true hit. It allows you to find a harmonic space and then explore that space melodically right alongside. We need more apps like this one out there, and at that really changes the way you interact with and think about music.

Needs note names


I really like this app and want to use it more frequently. There are a few simple labeling improvements that would make this app a lot more helpful. Please include the names of the notes on the keyboard for individual notes on the right. Also the chords need roman numerals for their degree.

Great App


I cannot imagine a better app for the musician AND non musician alike. Musicians can be as creative as they like and non- musicians can be up and making credible music in minutes.


Olympia Noise Co.
19.3 MB
Requires iOS 8.0 or later. Compatible with iPad.
English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
Age Rating
Rated 4+
© 2017 Olympia Noise Co.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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