Acchordion
Jazz chord quiz
Free · Designed for iPad. Not verified for macOS.
Acchordion is a quiz app for learning seventh chords.
Acchordion works by listening to you play your instrument (or sing) into the microphone of your device and identifying the notes you play. Match all four notes in a chord to move on to the next one. You can filter chords by their root note (e.g. C or A-flat) or by chord family (e.g. major or dominant).
Why learn seventh chords?
Seventh chords are the foundation of jazz and are also common in pop music. Knowing seventh chords will help you:
* read music from a lead sheet
* learn to play new songs more easily
* make new arrangements of songs you already know
* improvise over a particular song
* write your own songs
Acchordion is a fun way to learn these chords! It provides immediate feedback, so you can be confident that you’re practicing the right notes. Once you’ve mastered these basic chords, you’ll be ready to play like a pro!
Ratings & Reviews
The developer, Oojoo Studio, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Oojoo Studio, LLC
- Size
- 461.8 KB
- Category
- Music
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - iPad
Requires iPadOS 16.6 or later. - Mac
Requires macOS 13.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Oojoo Studio, LLC