No.
Music-wise, jailbreaking does not get you any free music that you wouldnt have had without jailbreaking it. You can find free music anywhere online, with or without a jailbreak. Jailbreaking does not get you free music, but does get you mods, apps, etc.
Yes, iTunes store. It comes with the iPod.
Rip the music files to your computer and then sync the ipod to it via itunes
If you want to play Spotify music on iPod, you should have a Spotify music converter. As Spotify doesn't offer its service to iPod now. With Tunelf Spotify Music Converter, you can easily download Spotify music to iPod for listening.
The ipod nano without the video and the ipod nano with video.
If you jailbreak correctly, no, you keep all your songs on your ipod after jailbreaking.
Jailbreak
nah
The bad news is: It won't be on your iPod after you jailbreak it and you're gonna have to re-sync it (boring!!!). The good news is: It will still be in iTunes.
Yes but you will lose all the jailbreak features.
download them from loads of sites as usual, you dont need to jailbreak just to get free music
How to jailbreak my iPod touch
to jailbreak your iPod 4.1 go to greenpois0n.com
mmm by listening to the music from youtube... for the rest you need a computer
No. Your jailbreak will remain as it is. Syncing your iPod does not alter the jailbreak in any way.
Free games, apps, music, and you can change the background and app style
to jailbreak your ipod 4.1 go to greenpois0n.com