Music Theory Matrix

Learn music theory

Free · Designed for iPad

Learn music theory through the lens of mathematics and computer science! Music Theory Matrix offers dynamic lessons which help solidify the foundations for music! Music Theory Meets Computer Science Ever wondered why certain combinations of notes sound beautiful while others clash? This groundbreaking app reveals the mathematical secrets behind music, making theory accessible through algorithms, data visualization, and computational thinking. MATHEMATICAL FOUNDATION • See the 12th root of 2 (~1.0595) that governs note frequencies • Interactive frequency calculator: A4 = 440Hz × 2^(semitones/12) • Visualize how octaves are perfect 2:1 frequency ratios • Pattern recognition in scale intervals: [2,2,1,2,2,2,1] for major scales DATA VISUALIZATION • Interactive piano with mathematical note mapping • Visual pattern detection in chord and scale structures • Circle of Fifths visualization showing key relationships ALGORITHMIC LEARNING • Chord construction algorithms: Root + [0,4,7] = Major triad • Scale generation from interval patterns • Harmonic series visualization and overtone analysis • Programming-style logical approach to music theory INTERACTIVE LABORATORY • Experiment with mathematical relationships in real-time • Instrument synthesis allowing you to hear the examples • Adjustable parameters to see how math affects sound • Pattern-based learning that clicks for analytical minds NEW FEATURES & IMPROVEMENTS • Expanded chord types: 40+ variations including extended, altered, and power chords • Interactive chord progressions - tap to play any progression • Advanced progressions section with jazz, modal, and chromatic examples • Functional Harmony visualization (Tonic, Subdominant, Dominant) • Enhanced full-screen piano COMPUTER SCIENCE CONCEPTS • Arrays & Indices: Notes as array positions [C=0, C#=1...] • Signal Processing: How digital audio represents analog waves • Algorithms: Step-by-step chord and scale construction PERFECT FOR • STEM students discovering music's mathematical beauty • Programmers and engineers learning music theory • Music students who think in logical patterns • Anyone who loves understanding "how things work" WHY THIS APPROACH WORKS • Eliminates memorization through pattern recognition • Uses familiar programming concepts (arrays, functions, loops) • Visual feedback makes abstract concepts concrete • Mathematical precision removes guesswork "Finally, music theory that makes sense!" - Perfect for logical thinkers who've struggled with traditional music education. Transform your understanding of music through the lens of mathematics and computer science. No prior music knowledge required - just curiosity about patterns, numbers, and beautiful sounds.

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Added interval to the interval explorer Fixed bug where you couldn't see some notes in the chord builder and interactive piano (displays notes above the visual octave in red) Expanded list of available chord types in the chord builder The common chord progression section is now expandable and progressions can be clicked to play them Added an advanced chords progression section Added circle of fifths section Added Functional Harmony section Made UI improvements to the expanded interactive piano in the playground tab

The developer, Hamoon Nozari, 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 Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    • Seller
      • Hamoon Nozari
    • Size
      • 5.9 MB
    • Category
      • Education
    • Compatibility
      Requires iOS 18.0 or later.
      • iPhone
        Requires iOS 18.0 or later.
      • iPad
        Requires iPadOS 18.0 or later.
      • Mac
        Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 2.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2025 SoundReign