In a career spanning nearly four decades, Argentine Fito Páez has sold more than 3 million albums, won five Grammys, and become one of Latin America’s most celebrated musicians. So it’s no surprise that Berklee is honoring the singer-songwriter, who brings his “Solo al Piano” tour — comprising vocal and piano classics — to the music school Tuesday. During the show, Páez will receive the Berklee Master of Latin Music Award in recognition of his long and distinguished career. . . . Meanwhile, Berklee student Ghita (inset) will open for Maroon 5 on Saturday at the Festival Mawazine Rythmes du Monde in Rabat, Morocco. The fest, whose big-name headliners include Pharrell Williams, Avicii, Jennifer Lopez, Sting, and Usher, apparently discovered Ghita’s songs via a Moroccan radio station, and invited her to submit a few YouTube videos of her work. The 20-year-old musician, whose full name is Ghita Marrakchi, will perform songs from her upcoming EP, which she co-wrote with a few fellow Berklee students and alums.