I do wonder if all the songs mentioned in the deposition have vocals recorded in some form, all songs we've heard - and came to learn about so far - have vocals on them. Songs like Far Far Away, Make Or Break and Turnin' Me Off have been confirmed to have scratch vocals recorded and other songs like Crack Kills, What A Lovely Way To Go, the demo of Little Susie, Who Do You Know, Buffalo Bill, etc., have full vocals recorded. The only exception to this would be the song Red Eye but even then the version that was copyright registered is the version that was worked with Neff-U around the end of MJ's life, we don't know for certain if it's the exact same song as the one mentioned in the deposition.
Maybe I'm just reaching, but so far it seems that the songs that were on that list might be songs that MJ had recorded.