---
title: "Thelonious - Reviews, Revenue and Downloads in Belize | Apple App Store"
description: "Thelonious is a music theory app designed to help you understand keys, chords, scales, and harmony through clear, visual layouts.  Explore major keys, review scale notes, and study diatonic chords in "
---

# Thelonious — Belize
> A pocket guide to music theory

![Thelonious App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/24/82/b2/2482b2d1-9e33-f773-011b-d764f466c737/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/developer/unknown-FWftmc)
**Category:** Music
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** com.robnatale.thelonious
**Store:** Apple App Store
**Country:** Belize
**Version:** 1.0 (released 2026-04-01)
**Original Release:** 2026-04-01
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/bz/app/app/id6760714389)
**AppTail Page:** [https://apptail.io/app/thelonious-VzmA/belize](https://apptail.io/app/thelonious-VzmA/belize)

## Thelonious Description
Thelonious is a music theory app designed to help you understand keys, chords, scales, and harmony through clear, visual layouts.

Explore major keys, review scale notes, and study diatonic chords in a format built for both learning and quick reference. Thelonious connects theory to real playing with chord progressions, guitar mode charts, and CAGED system material.

Use Thelonious to:

• Explore major keys and their scale notes
• Understand diatonic chords and key relationships
• Learn relative minor and dominant chords
• Study chord progressions and harmonic movement
• View guitar modes and CAGED chord charts

Whether you’re learning the fundamentals or deepening your understanding of harmony, Thelonious makes music theory easier to read, understand, and apply.

## Thelonious Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/eb/60/c1/eb60c197-2ec6-1fdc-acc1-a23ba807f9d4/English__U0028United_States_U0029__U005ben-US_U005d_-_iPhone_-_6.9_U0022_Display_-_1.jpeg/1290x2796.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0d/85/61/0d85616d-51ab-7f4a-2433-2211df6933d2/English__U0028United_States_U0029__U005ben-US_U005d_-_iPhone_-_6.9_U0022_Display_-_2.jpeg/1290x2796.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b3/9d/81/b39d8133-8918-c56c-3574-bceab3a9d965/English__U0028United_States_U0029__U005ben-US_U005d_-_iPhone_-_6.9_U0022_Display_-_3.jpeg/1290x2796.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ee/0a/00/ee0a0089-7c1d-271e-61c9-867b6fff7439/English__U0028United_States_U0029__U005ben-US_U005d_-_iPhone_-_6.9_U0022_Display_-_4.jpeg/1290x2796.png)






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## Thelonious Available In
- [Belize](https://apptail.io/app/thelonious-VzmA/belize)
- [Sweden](https://apptail.io/app/thelonious-VzmA/sweden)

---

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