You realise that your going on very terrible evidence for your hypothesis,
Reasons why it's not Michael:
1. SOME of the Jacksons say it isn't (Janet has said nothing, and frankly i trust her the most)
2. He sounds different and someone claims its Jason Malachi and your ears agree with that.
3. ... oh wait, thats it
Reasons why it IS Michael on the tracks:
1. It's credited to him (thats common bloody sense)
2. 10+ people who have worked with him recently say it's him (I suppose you think that's excuses too)
3. The Cascio's are witnesses to the recordings (Honestly saying they are lying will mean we cant count the testimony of anyone, and the Jacksons have a bad track record, the Cascios were trusted by Michael more than his OWN FAMILY)
4. Jason Malachi has denied involvement with the recordings (If he's lying then to me thats just excuses, innocent until proven guilty)
5. 2 forensic audiologists conclude that the tracks are Michael (Whether they are lying does not detract from the fact that the tracks were not complete and had heavy editing)
6. Sony had no reason to spend money on 11 tracks from a family "claiming" to know Michael Jackson if the tracks were fake, Millie Vanillie is a good example of what happens to Record companies after something like that.
Coming and saying it's not him because your ears say its not, is not a valid excuse.
BTW IMO i think Behind The Mask is FAKE and has an imposter singing in it