I've answered this before, man. For The Record is not the best current source we have. It is over a decade old.
"Belong 2" and "On My Anger" likely don't exist. They might be in the book, yes, but the book isn't spot on about everything. Don't waste your time trying to find info about them.
"Pressure" and "Seduction" have been registered with BMI & ASCAP at various times. I recall there being two separate "Pressure" titles - one co-written by Bryan Loren. I'll have to do some searching again for the others.
You found info he wrote about the songs, but you haven't read the book ? I assume that means you read it on Wikipedia or the MJ Wiki ? I don't recommend that, either. It doesn't do you any favors if you want to learn about genuine songs.