Currently Being ModeratedJan 2, 2013 11:10 AM (in response to dabza)
No need to worry. Assuming you have an ipod with an LCD screen, make sure you are signed into your iTunes account by opening up iTunes on your device, scrolling down to the bottom, and viewing the correct email.
Dont see the email or sign in button?
Make sure you are in the home screen of the iTunes store of your ipod
Once that is accomplished, search for the music you lost using your itunes store. You should be able to install all of your music as long as you remember which ones you lost. You will not have to repurchase anything as long as you had i before and the item was succesfully installed.