ToneMaps Atlas

The Chord Book I wish I'd had

$9.99

Select and modify harmonic structures for guitar or piano. Voicings stay synced on Keyboard, Progression and Theory tabs, supporting exploration & discovery. See your exact selection in progressions and theory examples, where every chord can cycle through CAGED and non-CAGED inversions. Listen, compare, and choose. ToneMaps also stay in sync across the app. ToneMaps are full-keyboard depictions of chord degrees. Select by individual degrees to focus on specific harmonic relationships. You’ll love these features: • No subscriptions, no in-app purchases, no premium tier • No data collection • CAGED voicings for a very wide range of chords • Build any chord by touching notes; the name updates everywhere • Keyboard depictions of your selected voicings throughout the app • Back and Forward buttons to explore safely • Filter chord tones and scale degrees on ToneMaps • Cycle triads and shells on ToneMaps • Extensive Passing-chord choices for every change in the selected Progression • Wide and weird voicings included for composers and arrangers • 27 languages, including the user guide • Key specific Open Chords. A lot of 'em! An end-to-end resource that can provide years of use for players at all levels.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Keyboard voicings can now be reset to the original selected chord. Tone Maps are enhanced, and the Barry Harris section on Theory is expanded.

Version 1.0.3

The developer, Tone & Logic Inc., 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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Tone & Logic Inc.
    Size
    17.3 MB
    Category
    Music
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © 2026 Tone & Logic Inc.
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.