What is this "manual" method you speak of? That is I have for years set the playlists I want in iTunes and sync. You seem to be trying something odd.
Bob
Hi all,
I manage my device content manually on iTunes, and I am trying to delete enough songs from my ipod touch to download the new iOS. I clicked "on this device" in iTunes and deleted the songs I didn't want, but they are still on my device. I've restarted the device and restarted iTunes. When I had unplugged the device and plugged it back in, under "on this device" it does not show the song I tried to delete, but they are still on my device. Any help would be greatly appreciated. iPod touch, iOS 7.1.2
My iPod Touch current has 2580 songs on it, and I have it set where it only displays music downloaded to the actual device and not iCloud. However in iTunes under On This iPod, it says I only have 1600 songs (which is what I want to be true).

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