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README.md

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+# Audio Downloader & Tagger
+
+Download YouTube playlists and tag audio files with metadata and cover art.
+
+## Installation
+
+```bash
+pip install -r requirements.txt
+brew install yt-dlp ffmpeg  # macOS
+# or: sudo apt-get install yt-dlp ffmpeg  # Ubuntu
+```
+
+## Usage
+
+### Download a playlist
+
+```bash
+python downloader.py
+```
+
+Prompts for: playlist URL, album, artist, output folder, disc number, track start, workers.
+
+### Tag audio files
+
+```bash
+python tagger.py
+```
+
+Prompts for: folder path, album, artist, disc number, track start, cover filename.
+
+## Features
+
+- Parallel downloads & tagging
+- Converts to Opus format
+- Embeds metadata & cover art
+- Vorbis comment tags (standard)
+
+## Supported Formats
+
+**Download:** .opus, .ogg  
+**Tag:** .opus, .ogg
+
+## Requirements
+
+- Python 3.8+
+- yt-dlp, ffmpeg (system)
+- mutagen, joblib (Python)