iChanges - Jazz Chord Trainer
Learn Jazz Harmony by Playing
$3.99
Go beyond theory: hear the changes, play the right target tones, and build confidence in your improvisation.
Master jazz harmony directly on your instrument.
iChanges helps jazz musicians train chord tones, target notes and jazz changes through active playing instead of pure theory.
Use your trumpet, saxophone, piano, guitar or any melodic instrument with real-time pitch detection, or practice silently with the built-in keyboard.
Features:
• Real-time pitch detection using your microphone
• Built-in piano keyboard for silent practice
• 15 chord types including Maj7, Min7, Dom7, Alt7, Half-Diminished and more
• All 12 keys supported
• Transposition for C, Bb, Eb, F and G instruments
• Random practice mode
• Song mode with MusicXML import
• Adjustable tempo and chord duration
• Practice chord tones, tensions and alterations
• Select specific target notes or train randomly
• Local progress tracking and statistics
• 14-day learning history
Whether you are learning your first ii-V-I progression or refining altered dominant vocabulary, iChanges provides focused, practical training designed for real musicians.
No account required.
No subscriptions.
No ads.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Microphone and on-screen keyboard can now be selected as input methods
• Improved arpeggio exercises, especially for Add9 chords
• Rhythmically and harmonically revised Swing and Bossa accompaniments
• More musical song endings with a smooth ritardando
• Improved stability in Random Mode and audio playback
• Optimized for current iOS and iPadOS versions
The developer, Klaus Storck, 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
- Klaus Storck
- Size
- 21.6 MB
- Category
- Music
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- Copyright © 2026 Klaus Storck. All rights reserved.
