2. Open iTunes.
3. Click on the "Device" button in the top left corner of the iTunes window.
4. Select your iPod from the list of devices on the left side of the iTunes window.
5. Click on the "Music" tab in the middle of the iTunes window.
6. Find the songs that you want to delete from your iPod but not from your library.
7. Control-click (or right-click) on the songs and select "Delete from Playlist".
8. Click on the "Sync" button in the bottom right corner of the iTunes window.