Harvey Mason Jr. had a singular when he became a dues-paying member of the Recording Academy, under whose auspices the Grammy Awards are presented. “I joined because I really wanted to win a Grammy, and I wanted to vote for myself!” the veteran songwriter and record producer said, laughing heartily. Over the course of his career, he has worked with everyone from Aretha Franklin, Michael Jackson and Beyoncé to Whitney Houston, John Legend and Justin Bieber. Although Mason has five Grammy nominations to his credit, he has yet to take home one of the coveted trophies — despite voting for himself….