Help! iPod Touch deleted songs after connecting to iTunes but songs still show up in iTunes display
I connected my iPod Touch 64GB (iOS 5.1.1.) to iTunes (12.0.5.00) on my MacBook Pro (10.10.2) in order to add a couple of podcasts. Unfortunately, now only the podcasts show up on my iPod display -- they're the only audio media on the device. My 6500 songs, all my playlists are gone from the iPod (and iPod display) as well. However, on the iTunes display on my computer, when my iPod is connected, all my songs and playlists are there.
Hoping I can get some help figuring out what went wrong and how to get the songs back on my iPod so I don't have to manually add them all from a backup external hard drive (I don't keep them all in iTunes nor all the backup files on my computer's hard drive to save space).
You can see in the photo below on the left side of the display, 'On My Device', all my playlists remain. On the main display, all my music is there -- it's just not on the actual iPod itself. You can also see at the bottom of the screen, the iPod capacity bar, which shows that 56.80 GB is free, suggesting the songs are in fact, deleted from the iPod.
Can anyone assist? Any thoughts as to why the songs & playlists still show up in iTunes if they are in reality deleted from the iPod?
Thank you for any info or assistance, it's very much appreciated.
Derek
iPod touch, iOS 5.1.1, Connecting to iTunes (12.0.5.00)