GitSymphony - Kiroween 2025 Hackathon Submission

Inspiration

As developers, we spend countless hours crafting code, fixing bugs, and building features. Each Git commit represents a moment in time—a decision made, a problem solved, a creative breakthrough. But we only experience this story through text and numbers in our terminals.

What if we could hear our code? What if we could see our development journey in 3D space?

GitSymphony was born from this simple question. We wanted to celebrate the creative process of programming by transforming Git history into multisensory art. The idea perfectly fits the Frankenstein category: combining three technologies that were never meant to work together—Git (version control), Web Audio API (music generation), and Three.js (3D graphics)—into something magical.

What it does

GitSymphony transforms your Git commit history into a beautiful, generative symphony with stunning 3D visualizations:

🎵 Musical Features:

Each commit becomes a musical note based on its changes
Different file types play different instruments (JS→Synth, Python→Piano, Rust→Bass, CSS→Pluck)
Large commits (>100 changes) trigger chord progressions
Pentatonic scale ensures everything sounds harmonious
Real-time playback with drum accompaniment

🌌 3D Visualization:

Each commit appears as a planet in a cosmic solar system
Spiral layout represents the timeline of development
Color-coded by commit size and type (red=large, cyan=additions, orange=medium)
Interactive controls: drag to rotate, scroll to zoom, double-click for auto-rotate
Real-time highlighting syncs with audio playback

🎮 User Experience:

Analyze any local Git repository or GitHub URL
Dark/Light theme toggle
Responsive design works on all devices
Scrollable commit history with live sync
Professional UI built with Tailwind CSS and shadcn/ui

How we built it

Architecture

Full-Stack Application:

Frontend: Vite + Vanilla JavaScript for fast, lightweight performance
Backend: Node.js + Express API for Git repository analysis
Music: Tone.js (Web Audio API wrapper) for multi-instrument synthesis
3D Graphics: Three.js for real-time rendering and animations
Styling: Tailwind CSS + shadcn/ui for professional design

Key Technical Implementations

1. Git Analysis Pipeline

// Backend parses repository using simple-git
const commits = await git.log({ maxCount: 100 });
// Extract: hash, author, date, message, additions, deletions, files

2. Musical Mapping Algorithm

// Pentatonic scale for pleasant harmonies
const scale = ['C', 'D', 'E', 'G', 'A'];
const octave = Math.floor(additions / 20) + 3;
const note = scale[additions % scale.length] + octave;
const duration = clamp(totalChanges / 50, 0.2, 1.5);

3. 3D Positioning

// Spiral layout in 3D space
const angle = index * 0.5;
const radius = 5 + (index * 0.3);
const position = {
  x: Math.cos(angle) * radius,
  z: Math.sin(angle) * radius,
  y: (index * 0.2) - 5
};

4. Real-time Synchronization

Centralized state management for audio, visuals, and UI
Tone.js Transport system for precise timing
Event-driven architecture for commit highlighting
requestAnimationFrame for smooth 3D animations

Kiro AI Integration

We extensively used Kiro AI features to accelerate development:

Vibe Coding: Rapid prototyping and iteration
Steering Documents: Custom guidelines for music theory, project structure, and git analysis
Agent Hooks: Automated testing on file save
Spec-Driven Development: Structured planning for complex features
Context Management: Efficient use of #File, #Folder, and #Codebase references

Challenges we ran into

1. Music Theory is Hard

Problem: Direct data-to-note mapping sounded chaotic and unpleasant.

Solution: We researched music theory and implemented pentatonic scales, proper note durations, and chord progressions. We created a steering document (music-theory.md) to maintain musical quality throughout development.

2. Browser Audio Restrictions

Problem: Browsers block audio playback until user interaction for security reasons.

Solution: Implemented a proper "Play" button that initializes the Tone.js audio context on first click, with clear user feedback and error handling.

3. 3D Performance Optimization

Problem: Rendering 100+ spheres with real-time animations caused frame drops.

Solution:

Optimized render loop with requestAnimationFrame
Used efficient particle systems for effects
Limited visual complexity for large commit counts
Implemented proper cleanup and memory management

4. Real-time Synchronization

Problem: Keeping audio playback, 3D visualization, and commit list highlighting perfectly in sync.

Solution: Built a centralized state management system with event-driven architecture. Used Tone.js Transport for timing and careful coordination between all three systems.

5. GitHub URL Support

Problem: Users wanted to analyze remote repositories without manual cloning.

Solution: Backend automatically clones GitHub repos to temporary directories, analyzes them, and cleans up afterward. Includes error handling for private/invalid repos and fallback to mock data for demos.

6. Cross-browser Compatibility

Problem: Different browsers handle Web Audio API differently.

Solution: Tested extensively on Chrome, Firefox, and Safari. Implemented fallbacks, clear error messages, and volume controls for better user experience.

Accomplishments that we're proud of

✨ Technical Achievements:

Successfully combined three incompatible technologies (Git + Audio + 3D) into a cohesive experience
Implemented music theory principles for pleasant-sounding output
Built a smooth, interactive 3D visualization with 60fps performance
Created a full-stack application with real Git integration
Achieved perfect audio-visual synchronization

🎨 Design & UX:

Professional, polished UI with dark/light themes
Intuitive controls and clear user feedback
Responsive design that works on all devices
Beautiful 3D solar system visualization

📚 Documentation & Best Practices:

Comprehensive documentation (7 markdown files)
Kiro AI steering documents for maintainability
Agent hooks for automated quality checks
Spec-driven development for complex features
Professional README with badges and screenshots

🚀 Deployment:

Frontend deployed to Vercel
Backend API deployed to Railway
Automated deployment pipeline
Demo video and screenshots

🎯 Frankenstein Category:

Perfect embodiment of combining incompatible technologies
Git (version control) + Web Audio (music) + Three.js (3D graphics)
Created something truly unique and unexpected

What we learned

Technical Skills

Music Theory Fundamentals: Learned about scales, chords, note durations, and how to map data to pleasant-sounding music. Understanding pentatonic scales was crucial for making the output always sound good.
Web Audio API Mastery: Deep dive into Tone.js, audio context management, synthesis, and real-time audio generation. Learned about browser restrictions and best practices.
3D Graphics Programming: Gained experience with Three.js, orbital mechanics, camera controls, particle systems, and performance optimization for real-time rendering.
Git Internals: Better understanding of Git's data structure, commit metadata, and how to parse repository history programmatically.
Real-time Synchronization: Learned techniques for coordinating multiple systems (audio, visual, UI) with precise timing.

AI-Assisted Development

Kiro AI transformed our development process:

Steering Documents: Custom guidelines kept our codebase organized and maintainable. The music theory steering doc ensured consistent musical quality.
Agent Hooks: Automated testing on file save caught bugs early and maintained code quality without manual intervention.
Spec-Driven Development: Breaking down complex features (like MIDI export) into requirements, design, and tasks made implementation much clearer.
Vibe Coding: Rapid iteration allowed us to experiment with different approaches quickly and find what worked best.

Soft Skills

Creative Problem Solving: Finding ways to map abstract data (commits) to concrete experiences (music + visuals)
User Experience Design: Making complex technology accessible and enjoyable
Documentation: Writing clear, comprehensive docs that help others understand and use the project

What's next for GitSymphony

Short-term Features (Next Sprint)

🎼 MIDI Export

Save your git symphony as a MIDI file
Import into DAWs like Ableton, FL Studio, or Logic Pro
Edit and remix your code's music

🎨 Enhanced Visualizations

Branch visualization with multiple tracks
Merge commits as harmonic convergence points
Author-based color coding
File type distribution charts

🎵 Music Customization

Choose different musical scales (major, minor, blues, chromatic)
Tempo control and time signatures
Custom instrument mapping
Volume mixing for each instrument

Medium-term Goals

🔴 Live Mode

Real-time music generation with git hooks
Hear commits as they happen
Integration with VS Code and other IDEs
Kiro AI hook for automatic playback

🤝 Collaboration Features

Compare multiple repositories side-by-side
Team symphony mode (multiple authors = multiple instruments)
Leaderboard for most musical repos
Share symphonies on social media

📊 Analytics Dashboard

Commit frequency patterns
Most active hours/days
File type distribution over time
Developer contribution visualization

Long-term Vision

🤖 AI-Enhanced Music

Use ML to smooth melodies and improve harmony
Generate variations on the theme
Style transfer (make your repo sound like Bach or Beethoven)
Predictive composition based on coding patterns

🌐 Community Platform

Gallery of popular repository symphonies
Voting and favorites system
Remix and share features
API for third-party integrations

🎮 Gamification

Achievements for musical commits
Challenges (create the most harmonious repo)
Seasonal events and competitions
NFT minting of unique symphonies (optional)

📱 Mobile App

Native iOS/Android apps
Offline mode with cached repos
Push notifications for new commits
AR visualization mode

Technical Improvements

WebGL optimization for larger repositories (1000+ commits)
WebAssembly for faster Git parsing
Progressive Web App (PWA) support
Accessibility improvements (screen reader support, keyboard navigation)
Internationalization (i18n) for global audience

🎯 Why GitSymphony Matters

GitSymphony isn't just a fun visualization tool—it's a celebration of the creative process of programming. It transforms the often-invisible work of developers into something tangible, beautiful, and shareable.

By combining Git, music, and 3D graphics, we've created a new way to experience and appreciate code. Whether you're a developer wanting to hear your project's story, a team lead visualizing collaboration patterns, or someone curious about what code "sounds like," GitSymphony offers a unique perspective on software development.

This is the Frankenstein spirit: taking technologies that were never meant to work together and creating something magical, unexpected, and delightful.

Built with ❤️ and Kiro AI for Kiroween 2025 🎃

Live Demo: https://gitsymphony.vercel.app
GitHub: https://github.com/KHemanthRaju/GitSymphony
Demo Video: View Screenshots