I inadvertently deleted a tune from my iTunes library on my computer.
I inadvertently deleted a tune from my iTunes library on my laptop as it was duplicated there but one copy would not play. As luck would have it, I deleted the working copy. I then found that the working copy was still on my iPod so I did a sync thinking that it would be moved from the iPod back to the laptop. WRONG. However, I found the deleted copy in the Trash. Quite obviously, I'm not knowledgeable in such matters, so I decided to ask here for advice before I mess it up any further. How can I get the song back to my iTunes library on the laptop and then back onto the iPod as well?
Any advice would be greatly appreciated.