Songs Magically Disappeared?

So I hook up my iPod Touch to my laptop and I had 332 songs and now I only have 301 songs. Why does this happen? It did it with my iPhone 4S and now this. Can someone explain to me what's going on? It syncs but it shouldn't be randomly removing songs.

It's not magic, and it isn't "randomly" moving songs; the song files are missing the album name information from their ID3 tag.

1.Open iTunes.
2.Select the song or songs that you want to edit.
3. From the File menu, choose Get Info.
4.Click the Info tab.
5.Type the album name in the Album field, make any other changes that you wish, and then click OK.
6. If you have iTunes set to update songs on your iPod automatically, choose Update iPod from the File menu. If you manually update your iPod, drag the song from your iTunes library to the iPod icon in the Source list.

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