# Interval Matrix Pro — Visual Music Theory

> Visual music theory app for musicians, showing relationships across instruments. (iPhone/iPad app by JIMMY MICHAEL HUDSON.)

- Source: https://appshunter.io/ios/app/interval-matrix-pro/id6756457753 (this page in markdown: same URL + `.md`)
- Developer: [JIMMY MICHAEL HUDSON](https://appshunter.io/developer/1860733207)
- Category: Music, Education
- Price: Free with in-app purchases (on sale, was $19.99)
- Rating: 5.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 9+
- Requires: iOS 15.1 · 44 MB
- Languages: American English
- Released: 2025-12-22
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/interval-matrix-pro/id6756457753/reviews.md

## What is Interval Matrix Pro?

Interval Matrix Pro - Visual Music Theory for Guitar, Piano, Bass & More
Stop memorizing shapes. Start seeing music.

Interval Matrix Pro is a powerful visual music theory app for guitar, piano, bass, and multi-instrument musicians. Instantly see scales, chords, modes, and intervals across instruments using a unique color-based system that makes music theory intuitive, fast, and musical.

Instead of dense theory books or memorized box patterns, Interval Matrix Pro uses a high-contrast 12-color interval matrix that reveals the geometry of music in real time.

Your eyes navigate.
Your ears create.

Why Interval Matrix Pro Is Different
Most music theory apps show notes.
Interval Matrix Pro shows relationships.
Inspired by advanced mental compartmentalization techniques used by legendary players, Interval Matrix Pro functions like a GPS for music theory and helps you:

Instantly recognize interval function
Visually understand tension and resolution
Translate ideas between guitar, bass, piano, and other instruments
Understand harmony without memorizing patterns
This is music theory training, not rote memorization.
Supported Instruments
Guitar and Bass
Guitar: 6-string, 7-string, and 8-string layouts
Bass: 4-string, 5-string, and 6-string visualization
Instantly translate shapes between guitar and bass
Piano and Keyboard
Full 88-key visualizer
Clearly understand black-key and white-key relationships
Ideal for composition, harmony, and ear training
Orchestral and Folk Instruments
Violin, Viola, Cello, Double Bass
Banjo, Mandolin, Dulcimer, Ukulele
World Instruments (Deep Vault)
Sitar, Oud, Bouzouki, Balalaika, Charango
Explore global harmony systems visually
Total Customization (Advanced Mode)
Build the instrument you actually play.
Custom instruments and fretboards
Custom tunings including Drop D, Open G, DADGAD, and more
Interval toggling to isolate function
Practice shell voicings
Highlight only root, 3rd, and 7th
Remove noise and focus on intent
A Deep Theory Engine
Over 146 scales including exotic, symmetrical, and authentic Indian ragas
Accurate modal labeling including Dorian, Phrygian, Aeolian, Mixolydian, and more
Smart color coding that helps you feel stability and tension before you play
Built by a Music Educator
Interval Matrix Pro was designed by a 30-year music educator and former guitar tech and student of Shawn Lane. The app is paired with a complete interval-based learning curriculum.
Learn more at:
https://www.bestguitarchannel.com/shawnlane

Stop guessing.
See the music.
Enter the Matrix.

Start your 3-Day Free Trial today.
https://bestguitarchannel.com

## Key features

- Visual music theory for guitar, piano, bass, and more
- Color-based system for intuitive understanding
- See scales, chords, modes, and intervals
- Supports custom tunings and instruments
- Extensive scale and mode library
- Designed by a music educator

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly Subscription | $10.99 | per month |
| Yearly Subscription | $49.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $69.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/interval-matrix-pro/id6756457753/reviews.md

### 5/5 — Expedite your knowledge of the fretboard

*2026-02-24*

Practicing with this app will ensure your knowledge of your instrument is systematically proficient.

### 5/5 — Game changer

*2025-12-26*

I have always gotten a headache reading scale charts but after downloading this, I can literally see every scale chart possible on pretty much any instrument too!

## Frequently asked questions about Interval Matrix Pro

### What instruments does Interval Matrix Pro support?

Interval Matrix Pro supports a wide range of instruments including guitar (6, 7, 8-string), bass (4, 5, 6-string), piano (88-key), and orchestral/folk instruments like violin, viola, cello, banjo, mandolin, and ukulele. It also includes world instruments such as sitar and oud.

### How does Interval Matrix Pro help with learning music theory?

Instead of memorizing shapes, Interval Matrix Pro uses a visual, color-based system to reveal the relationships between notes, scales, chords, and intervals. This approach makes music theory intuitive and helps users understand harmony and tension without rote memorization.

### Can I customize instruments and tunings in Interval Matrix Pro?

Yes, Interval Matrix Pro offers advanced customization. You can build your own instruments, set custom tunings like Drop D or DADGAD, and toggle intervals to focus on specific musical functions or shell voicings.

### What is the pricing for Interval Matrix Pro?

Interval Matrix Pro is free to download and offers a 3-day free trial for its subscription plans. Subscription options include Weekly ($2.99/P7D), Monthly ($10.99/P1M), and Yearly ($49.99/P1Y).

### Does Interval Matrix Pro have ads?

No, Interval Matrix Pro is ad-free. The app is free to download and offers in-app purchases for its subscription plans.

### What is the age rating for Interval Matrix Pro?

Interval Matrix Pro has an age rating of 9+, making it suitable for younger musicians and students as well as adults.

### How often is Interval Matrix Pro updated?

The latest version of Interval Matrix Pro is 2.2.8, which was last updated on February 12, 2026. This indicates a commitment to regular updates and improvements.

### What makes Interval Matrix Pro different from other music theory apps?

Unlike apps that simply show notes, Interval Matrix Pro focuses on showing the relationships between them using a unique color-based interval matrix. This visual approach helps users understand the geometry of music and translate ideas between different instruments.

## Version history (last 5 releases)

### 2.2.8 — 2026-02-12

We have taken a major step forward in making Interval Matrix Pro faster to understand, easier to navigate, and even more powerful as a complete visual music theory system.
Name Restored: Interval Matrix Pro
Based on strong user recognition, we have restored the original name. Interval Matrix Pro is already known among serious musicians, educators, and professionals, and this update reinforces that identity.
Simplified Navigation (Major Upgrade)
Music theory should feel clear, not overwhelming.
Scales, modes, and chord structures have been simplified and reorganized
Faster access to commonly used material
Less menu friction and more time actually playing
Designed to reduce cognitive load while increasing clarity
This makes the app dramatically easier for beginners while remaining deep enough for advanced players.
Massive Expansion of Instruments
Interval Matrix Pro now supports one of the most diverse instrument libraries available in any music theory app.
Guitar and Bass

Guitar support from 4 to 8 strings, including extended range layouts
Bass visualization for 4, 5, and 6 strings
Piano and Keyboard
Full visual mapping across the keyboard
Orchestral Strings
Violin, Viola, Cello, Double Bass
Folk and Bluegrass
Banjo, Mandolin, Ukulele, Dulcimer
World Instruments (New)
Sitar, Oud, Bouzouki, Balalaika, Charango, and more
The same interval logic works across all instruments. Once you see it, you cannot unsee it.
Expanded Indian Ragas and Exotic Scales
This update adds a large collection of Indian Ragas along with additional exotic and symmetrical scales.
Proper interval structures
Accurate scale degrees
Fully visualized using the Matrix color logic
This makes Interval Matrix Pro uniquely powerful for world music, fusion, advanced composition, and modal exploration beyond Western theory.
Refined Visual Interval System
The core visual engine has been refined to make interval relationships even clearer.
High contrast 12 color interval system
Instantly see tension, stability, and harmonic function
Toggle specific intervals on or off to focus your practice
This is not memorization. It is pattern recognition.
Integrated Learning Path
Interval Matrix Pro works hand in hand with a complete interval based learning curriculum built from decades of real world teaching experience.
Learn more here:
https://www.bestguitarchannel.com/shawnlane

The app shows you the map.
The course teaches you how to drive.

Why This Update Matters
This version makes Interval Matrix Pro:
Easier to learn
Faster to use
Broader in musical scope
Stronger as a long term practice system
Whether you play guitar, piano, orchestral strings, or world instruments, this update brings everything together into one unified visual language.
Stop guessing. Start seeing.
Thank you for being part of the Interval Matrix Pro community.

### 2.2.6 — 2026-01-29

Music Scale and Chord Matrix Name Change and cool New Icon! This is now APP formally known as Interval Matrix Pro. There are a ton of new instruments and scales yall and a 3 day Free Trial!

### 2.2.3 — 2026-01-22

WHAT'S NEW IN VERSION 2.2.3.    **** IF YOU ARE USING THE MAC VERSION AND ONLY A CHART POPS UP MANUALLY SWITCH IT TO PORTRAIT MODE UNDER VIEW AS SOME TESTERS REPORTED THIS! 
INDIA, WE HEAR YOU LOUD AND PROUD! You asked for it, and we delivered. The Matrix has officially expanded into the world of Indian Classical Music. We have added 20 Authentic Ragas (including Bhairav, Todi, Yaman, and Marva) and full support for the Sitar. Now you can visualize the ancient geometry of Ragas with the modern power of the Interval Matrix.

### 2.1.6 — 2026-01-19

WHAT'S NEW IN VERSION 2.0
INDIA, WE HEAR YOU LOUD AND PROUD! You asked for it, and we delivered. The Matrix has officially expanded into the world of Indian Classical Music. We have added 20 Authentic Ragas (including Bhairav, Todi, Yaman, and Marva) and full support for the Sitar. Now you can visualize the ancient geometry of Ragas with the modern power of the Interval Matrix.

THE BIGGEST CONTENT UPDATE EVER:

We have added 146+ SCALES and a massive library of new instruments by popular demand!

NEW SYMPHONIC STRINGS Complete visualization for the orchestral family:

Violin

Viola

Cello

Double Bass

NEW WORLD INSTRUMENTS Unlock the "Deep Vault" of exotic sounds:

Sitar (India)

Oud (Middle East)

Bouzouki (Greece)

Balalaika (Russia)

Charango (Andes)

NEW BLUEGRASS COLLECTION

Banjo

Mandolin

Dulcimer

Ukuleles

INTRODUCING "GOD MODE" CUSTOMIZATION

Don't see your instrument? BUILD IT.

Custom Tunings: Create any tuning you can imagine (Open C, DADGAD, Drop A).

Custom Instruments: Set your own string counts and layouts.

Custom Interval Selection: Toggle specific intervals on/off to practice sophisticated "Shell Voicings" or target specific color tones.

146+ SCALES. 20+ NEW INSTRUMENTS. 1 MATRIX. Update now to unlock the ultimate visual upgrade for your musical brain.

### 2.1.2 — 2026-01-12

Streamlined efficiency, added to the already massive database of Chords, Scales, and Intervals. Now Build Custom Stringed Instruments by selecting the amount of strings and the tuning of the strings. Also Create Custom Intervals of your choice on any Instrument and enjoy our new save feature. Also Added Free Trial with Subscription Options.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*