Why are you calling this Jaylib if it's from Da 2nd Installment, I don't get it. So many people have jacked this and released their own music with it or titled it wrong.
This is not Dilla. Mathamatik and Attic from Toronto did this joint. It's called Letter to John off the No Division album that came out in 2006. There are some beats big Bro did not produce on these so called beat tapes so be mindful and respect the legacy #ForeverJDilla