EyeOnian™
Explore & visualize harmony
Free · In‑App Purchases
Explore a comprehensive library of music theory: browse every mode, analyze your own chords in real time, and see them in different forms of notation — all in one place.
EyeOnian is an interactive tool for exploring and visualizing harmony and scales — a single place to see how music theory fits together and to make it your own.
Browse a complete, comprehensive library of modes and the constructive harmony each one is built from. Feed in your own harmonic ideas and watch EyeOnian analyze them in real time. See your harmony rendered across four clefs, plus keyboard and fretboard diagrams — then save, share, and recall any visualization you create.
WHAT YOU CAN DO
Explore every mode — Browse a comprehensive library of scales and modes and see the harmony beneath each one.
Analyze in real time — Enter your own harmony and get instant, visual analysis.
Read it your way — Notation visualization which supports a wide range of instruments' needs.
Save, share & recall — Keep any visualization, share it, and bring it back whenever you need it.
WHO IT'S FOR
Musicians, students, composers, and teachers who want to exchange & understand harmony more deeply — whether you're learning your first modes or mapping advanced ideas.
Try it free in demo mode, then subscribe monthly or annually to unlock everything.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
General improvements to item selection & browsing areas within the application.
The developer, Music Solutions LLC, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Location
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Music Solutions LLC
- Size
- 25.7 MB
- Category
- Music
- Compatibility
Requires iPadOS 26.4 or later.
- iPad
Requires iPadOS 26.4 or later. - Mac
Requires macOS 26.3 or later.
- iPad
- Languages
English and 3 more
- English, French, German, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- EyeOnian Annual $39.99
- EyeOnian Monthly $3.99
- EyeOnian $49.99
- Copyright
- © 2026 Music Solutions LLC