Chordio
Chordio is a music theory and composition app from One In A Billion Ltd for exploring chords, scales, and stored chord progressions.
What is Chordio?
Chordio is a music theory and composition app published by One In A Billion Ltd. It is designed for musicians, composers, producers, teachers, and students who want to explore chords, scales, and harmonic ideas in an interactive format. The app is described by its publisher as a tool for finding chords and scales, generating chord voicings, and cataloging chord progressions in one place. App Store information also describes built-in sounds and support for multiple musical notation systems, which makes it useful for learning and drafting ideas without requiring external hardware. Users may encounter it on Apple platforms as a companion tool for songwriting, theory study, and classroom use. The bundle ID com.oneinabillion.chordmaster is associated with this product context, but exact on-disk macOS library paths are not verified here.
Key features
- Explore chords, scales, and modes interactively
- Generate chord voicings for composition and practice
- Store and organize chord progressions in one place
- Use built-in sounds to audition musical ideas
- Work with multiple musical notation systems
- Support songwriting, music education, and theory study
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Safety overview
Status: Mostly safe
This is a commercial music app from a known publisher, and there is no clear indication here of malicious behavior. As with most creative apps, it may store user projects, preferences, and local app data that users may want to keep.
Recommendation: Keep it if you use Chordio for music theory, composition, or teaching. Remove it if you no longer use the app and do not need any saved musical ideas or settings associated with it.
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