Rick Ross’s sixth album Mastermind arrives to little ceremony. Throughout its promotion the usual rattle and hum of the internet hype machine has remained eerily silent for an artist considered to be among rap’s elite. Ross has always sold buckets of records and his fourth album Teflon Don – released in 2010 – granted him large scale critical acceptance that legitimised his ascendancy to hip-hop’s head table. But the past couple of years have stifled a career rise that once seemed so unstoppable. The Miami native’s recent misdeeds include some unfortunate lyrics that attracted accusations of condoning date rape, the termination of his…