Ipod erased all of the previous songs when I tried downloading music from a different computer

Step 1: To Delete the songs you don't like from iTunes library: Launch iTunes > Click Music mark > Select My Music > List your music as Songs > Select the songs you don't like > Click Delete to remove them. Step 2: Connect your iPod to computer > Sync the music from your computer to iPod with iTunes

The first way is uncheck the songs you want to delete on iTunes and then sync iTunes with ipod again, then the songs you want to delete will lose from iPod.

The second way is use leawo iTransfer to delete songs from iPod, the way is connect iPod to leawo iTransfer, then right click on the music you want to delete from iPod on leawo iTransfer to choose "Delete", then the music will be deleted soon. However, this tool can only work on Windows computer.

If you backed up your iPod in iTunes before it synced with your iPod you may be able to restore your songs. In iTunes, plug your iPod into the computer and right click on your iPod when it appears in iTunes. You should see a Restore Backup or similar choice in the Right Click menu. Try restoring the backup. If this doesn't work, you won't be able to recover your music.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

this is what you will do, when you sync it again stop the automatic sync the click on your player on the itunes window to see its details, you will see 3 or 4 checkboxes and check manually add music or songs and ucncheck if there is any, the box that says automatically sync music, then click sync, it will start syncing again the disconnect. add songs only to the folder where itunes have got the songs so that next time you sync the ipod the songs previously added wont be erased.
for further details check here... http://www.apple.com/itunes/how-to/#video-sync

Try this one:
According to Apple, if you have forgotten the code, you can unlock the
IPod by doing the following:
Connect your IPod to the primary computer you use it with (the first one
IPod synced with), and open iTunes. When you disconnect iPod from the
computer, it will no longer be locked.
If you can't unlock IPod using either [the code or connecting it to the
computer you use to manage its songs]. . . you can restore your iPod to
factory settings using iPod Updater. Please note that this will erase
all data on your iPod. Afterwards, you can add your music and data back
to your iPod.
If you want to change the primary computer that your IPod is associated
with, do this:
1. Restore your iPod. Warning: The restore process cannot be undone.
All of your songs and files will be deleted. Always make a backup of
your important data.
2. Connect your iPod to the computer that you want to be the primary
computer.
3. Open iTunes and synchronize.
Apple also notes that company "representatives cannot unlock an iPod if
you forget your combination. If you can't unlock your iPod and you don't
have access to the primary computer, your only option is to restore the
IPod, which will erase all music and data."
Good Luck, I hope this helps
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The exclamation mark next to a title in iTunes means that iTunes cannot locate the song associated with that title (original file cannot be found). The cause for this is an incorrect setting of iTunes preferences when copying iPod songs.
Before copying your iPod songs, setup your iTunes preferences as follows

• Open iTunes preferences (in the Edit menu)
• Select the Advanced tab.
• Make sure the box next to "Copy files to iTunes Music folder when adding to library" is checked.
• Click OK.

Then use a program like TouchCopy to copy your iPod music to iTunes. You can download TouchCopy from here
http://www.wideanglesoftware.com/touchcopy/

Hai,
Everytime you install itunes for your iPod it sync'c for ones with your iPod. And on next time if you try to put it into another dock on a different computer the software asks for "Erasing the Data inorder to sync your iPod within that system",and its a common feature can't be changed!!!
The only thing to avoid this happening is try to back-up the iTunes library which is saved in My Documents-->My Music-->iTunes-->iTunes Library(WINDOWS system). And after a fresh installation of another iTunes,paste your back-up file to the new saved area in My Documents-->My Music-->iTunes itself :ask for replace ,...click to replace all.Then from that it uses your previous iTunes data's itself.
Hope this Helped!

Go to itunes and click on a song that you want to delete and press the delete button on your keyboard and it will ask you if you are sure you want to delete this song from all playlists and off the ipod and click yes and it will delete. Unfortunately, it will not let you delete it from the ipod menu without connecting it to a computer.

What youve probably done is unselected the playlists that was previously on your ipod so you could sync the new playlists. By doing this the ipod would automatically delete the old songs off your ipod and then sync the new ones. I'm guessing youve managed to upload new songs onto your ipod?

It could also be your using a different computer and by syncing the ipod to a new computer it would automatically delete previous playlists.

I suggest using a programme called sharepod where you dont need to use itunes and is much more simpler. The link is below.

sharepod

You can either do a restore:
Connect to your computer and open itunes.
When you first open itunes you should be in "Devices"
Make sure you're in the "Summary" tab and you will have a button that says "Restore"
Click that and it will do the rest.


Or
Sync with an itunes library that has no files on it, this will also remove the files from your ipod.