Chief Keef, Courtesy. As RIFF Rewind’s ongoing Black History Month comes up on the end of its second month these column topics are getting tougher and tougher. My first thought was to celebrate the second attempt at baseball’s Opening Day by highlighting how recent broken color barriers have been…

Big Sean performs at The Masonic in San Francisco on March 23, 2017. Photos: Jose Saucedo. SAN FRANCISCO — There’s a common misconception that sex, drugs and partying are primary themes in rap music. Big Sean proved otherwise at The Masonic Thursday. The Detroit rapper known for opening up about…