Implement Complete Stochastic Music Generation Web App with Webcam Interaction

[Copilot]

This PR implements a comprehensive web-based stochastic music generation application that brings the project's core concepts to modern browsers with real-time interaction capabilities.

Overview

The new web application translates the existing Python/R stochastic music generation concepts into an interactive browser experience, featuring webcam-based motion detection, real-time audio synthesis, and animated visual elements.

Key Features

🎥 Webcam Integration with Fallback

• Real-time motion detection using MediaDevices API
• Automatic fallback to mouse/touch interaction when camera is unavailable
• Performance-optimized frame differencing algorithm
• Graceful error handling with specific user feedback

🎵 Advanced Audio Engine

• Web Audio API implementation with multiple musical scales:
  • Major, Minor, Pentatonic, Blues, Chromatic
• Stochastic harmony generation with random elements
• Real-time note synthesis with ADSR envelopes
• Frequency modulation for richer timbres
• Browser audio context management

🎨 Interactive Visual System

• Physics-based animated shapes (circles, squares, triangles, stars, hexagons)
• Collision detection with musical note triggers
• Particle effects and motion trails
• Stochastic movement patterns
• Real-time canvas rendering at 30 FPS

📱 Modern UX/UI

• Responsive design with mobile support
• Glass morphism styling with gradient backgrounds
• Animated particle background
• Touch-friendly controls
• Real-time statistics display

Technical Architecture

The application follows a modular design with four main controllers:

• AudioController: Manages Web Audio API, scales, and sound generation
• CameraController: Handles webcam access and motion detection
• ShapesController: Manages animated shapes, physics, and visual effects
• StochasticMusicApp: Main application orchestrator

Files Added

• index.html: Complete HTML structure with video, canvas, and controls
• style.css: Modern responsive styling with animations (450+ lines)
• script.js: Main application logic with error handling (400+ lines)
• audio.js: Web Audio API implementation (350+ lines)
• camera.js: Webcam and motion detection (400+ lines)
• shapes.js: Animated shapes and physics engine (650+ lines)

Browser Compatibility

• Chrome/Edge: Full functionality including camera access
• Firefox: Full functionality with camera access
• Safari: Audio and fallback modes supported
• Mobile browsers: Touch interaction with responsive design

Usage

1. Open index.html in a modern browser
2. Allow camera access when prompted (or use fallback mode)
3. Click "Start Audio" to enable sound generation
4. Move in front of camera or use mouse/touch to create musical shapes
5. Experiment with different scales and settings

The application maintains the stochastic principles from the original implementation while providing an accessible, interactive experience that works reliably across different devices and browsers.

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