Harmony Chack

Try out harmonies by ear

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Hear the harmony that's in your head — and find out whether it actually works. You don't need an instrument. Play it on the on-screen keyboard, stack the parts, and listen. WHAT IT'S FOR - Adding a harmony line to a guitar solo - Working out how to voice a string arrangement - Saving a chord progression before you forget it - Thinking it through on headphones, anywhere WHAT YOU CAN DO Lay down chords The seven chords that fit your key are right there — tap to place one. Or build your own from a root, accidental, 7th, sus4 and tensions. Slash chords are supported. Common progressions like II-V-I and the blues can be dropped in whole. Stack up harmonies Record straight from the on-screen keyboard, up to four harmony parts. Each part has its own color, so you can see at a glance which note belongs where. Set the volume of each part, or hide one for a moment. Fix it afterwards Grab a recorded note and move it. Change its pitch, shorten it, delete it. No need to play the part again. Quantize to 16ths and other grids. Check it while it plays Play along with a click, drums and chord backing. Change the tempo and time signature, and loop a fixed number of bars so you can hear the same spot over and over. See it your way Switch between staff notation and piano roll. Zoom in horizontally for fine timing, or out vertically to see a wider range. Keep it Save what you build as a song, name it, and reorder your list. FREE Up to 8 bars, and two rock rhythms. Building chords, four harmony parts, recording and editing are all free. PREMIUM (one-time purchase) Unlocks all 16 bars and adds jazz, bossa nova, samba and techno rhythms. Pay once — nothing further. Note: the app is designed for landscape. Works on both iPhone and iPad.

Ratings & Reviews

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

• The slash chord button in the chord editor is now labeled "/" instead of "ON," matching the way slash chords are written in English.

Version 1.1

The developer, Hironori Karube, 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
    • Hironori Karube
    Size
    • 35.4 MB
    Category
    • Music
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • iPad
      Requires iPadOS 16.0 or later.
    • Mac
      Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English and Japanese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Carve Sound
  • Privacy Policy

    • More by Hironori Karube