youtube-music - Convert a playlist to a set of MP3s
Installation
1. Install ffmpeg
sudo add-apt-repository ppa:mc3man/trusty-media
sudo apt-get update
sudo apt-get install ffmpeg
2. Install youtube-dl
pip install --upgrade youtube_dl
3. Run it and find the option that suits you
./getmusic.py
Make sure to keep youtube-dl up-to-date!