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Crystal Ball

Published by Kreuder

Detects guitar chords and combines them into song sheets.

Open sourceAGPL-3.0-only

Highlights

  • Detects guitar chords on Android.
  • Combines chords into song sheets.
  • Supports song-oriented reference material.
  • Uses the AGPL-3.0-only license.

About this application

Crystal Ball is an Android app for identifying guitar chords and assembling them into song sheets. It focuses on turning detected chord information into a usable sheet format, which makes it relevant for practice notes, rehearsal material, or quick reference while working with songs. The main task is chord detection, followed by combination into a readable song sheet.

The app is limited to Android and is published under the AGPL-3.0-only license. Based on the supplied summary, it is a music-oriented utility rather than a general audio editor, with its workflow centered on chords and sheet generation.

Where to get it

Android

  • App storeF-Droid

    From the publisher

    OpenOpens in a new tab

    Package identifier: de.singular.crystalball

    Read from the source on 08/04/2026

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