Convert 11-Hour YouTube Video to MP3

I have a publicly-available YouTube video that runs for roughly eleven hours and I would like the entire soundtrack turned into a single, high-quality MP3 for my own personal listening. The link is ready to share as soon as we start.

Because I’m not completely certain about the copyright status, I need someone who understands the platform’s terms of service and is comfortable confirming that the conversion is permissible before proceeding. If everything is above board, feel free to use whatever workflow you prefer—youtube-dl, yt-dlp, FFmpeg, or another reliable tool—as long as the end result is clean and consistent from start to finish.

Deliverables:
• One MP3 file containing the full eleven hours of audio, encoded at 256 kbps or higher, free of glitches, gaps, or noticeable volume shifts.
• A brief note on the command or settings you used, so I can replicate the process in the future if needed.

That’s it—straightforward job, quick turnaround appreciated. Let me know if you have any questions about the link or technical specs.