Show HN: YouTube Guitar Tab Parser

A developer created a CLI tool that automatically converts YouTube guitar lesson videos into PDF tablature by downloading the video, extracting frames, using Claude's vision AI to locate the tab region, and stitching the distinct tab lines into a formatted PDF. The tool requires Node.js 20+, yt-dlp, ffmpeg, and an Anthropic API key, and works out-of-the-box with no configuration needed. It uses intelligent frame sampling and deduplication to efficiently extract only the unique tab content from the video.