Minus3audio Mastering Andre Sousa Toronto Hi, my name is Andre Sousa, I engineer and manage minus3audio, a boutique mastering and mixing studio working with local and global music. My life has been filled with bands, nightclub DJ’ing and lots of studio work. It all started in ‘99 when I completed my Trebas Institute’s Audio Engineering & Music Production course. Fast forward years ahead and many cappuccino’s later, when your project becomes my primary focus. I will do my very best to bring out the depth and clarity of your sound.