0. How to load your terminal program
1. The command line
2. Permissions/root
3. Package managers in general
4. pacman in particular (what, it's not the game?)
5. Command line switches
6. Piping
7. grep
8. What "looks OK" means in a Linux package description
And that's all assuming you know about MP3s, ripping and what features you need in such a program.Under Windows, you need to know:
1. A browser
2. A search engine
3. A feel for trustworthiness
In both cases, experience teaches you what you need to know. The necessary experience is much more easily obtained under Windows than Linux, and it's more generally useful in life. So that's why.