The eq plist holds settings for the eq sliders only. It has no knowledge of which songs those settings get associated with.
The connection between a particular song and a particular eq is held in the "/Users/you/Music/iTunes/iTunes Library" file... which is more easily viewable by other programs (like TextWrangler) in the xml version of same: "/Users/you/Music/iTunes/iTunes Music Library.xml"
Yep... That was the only thing left when the file turned out to not be what it sounded like it was.
(I've never touched my sliders, so I assume the file's current contents are default settings.)
It seems odd to me, though, that all of a songs (Is) metadata (the correct word?)
other than its Prefs > Options > Equalizer Preset and, I think, Volume Adjustment are attached to its file in ~/Music/iTunes/iTunes Music and can be easily restored, while the only way to restore equalizer and volume settings appears to be by importing an existing ~/Music/iTunes/iTunes Music Library.xml (Edit: or is it ~/Music/iTunes/iTunes Library, or is it both) file (as opposed to populating [a] new one[s]).
