Music Library Genre Diversity Analysis

This repository contains Python scripts for analyzing the genre diversity of a music library managed by Beets. These tools provide insights into the distribution and variety of genres in your music collection using different diversity indices.

Scripts

1. shannon_diversity_index_analysis.py: Script that uses the Shannon Diversity Index.
2. shannon_simpson_genre_diversity_analyser.py: An enhanced version that incorporates both Shannon and Simpson Diversity Indices.

Features

• Calculation of diversity indices:
  • Shannon Diversity Index (both scripts)
  • Simpson Diversity Index (enhanced script only)
• Analysis of overall genre diversity (including all genre tags)
• Analysis of primary genre diversity (considering only the first genre tag)
• Explanations for diversity scores
• Display of top genres in the library
• Distribution of tracks by number of genre tags
• Implications and insights based on the diversity analysis

Why Two Diversity Indices?

The enhanced script uses both the Shannon Diversity Index and the Simpson Diversity Index because they provide complementary information:

1. Shannon Diversity Index:

   • Emphasizes the richness component of diversity
   • More sensitive to rare genres in your collection
   • Assumes all genres are equally different from each other
   • Useful for detecting changes in less common genres

2. Simpson Diversity Index:

   • Emphasizes the evenness component of diversity
   • More sensitive to changes in the most common genres
   • Less affected by the presence of rare genres
   • Useful for understanding the dominance of certain genres in your collection

Using both indices provides a more comprehensive understanding of your library's diversity.

Requirements

• Python 3.x
• SQLite3
• Beets music library

Installation

1. Clone this repository
2. Ensure you have Python 3.x installed on your system.
3. No additional Python packages are required as the scripts use only built-in libraries.

Usage

For both scripts:

1. Update the db_path variable to point to your Beets library database
2. Run the desired script