Michael Jackson and Quincy Jones listened to 800 songs to find 9. Then Quincy threw out 4 of those 9 and went back into the studio. Beat It, Human Nature, P.Y.T., and The Lady in My Life were emergency replacements for songs that were not good enough.They spent four months just listening. Quincy and Rod Temperton sat in a Los Angeles studio in 1982, going through song after song after song from every songwriter they could pull a favor from. Most got cut after a few seconds. Of the 800, they only