I have a beat that was unmixed, the producer sent it to me as a reference and then his computer crashed and lost the file. Its from 2010 and it features 2 dope well known rappers, thats why i want to release it so bad. What should I do? When I record my verse on this record is there anything my engineer can do to the beat? And what about mastering? I'm going to release the record as an "Unreleased track" anyway but is there any audible hope quality wise?