Crystal Ball

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.