Big Boi, one half of the rap duo OutKast — the less boisterous, more prolific, non-corporate-sponsored one — released his second solo album, Vicious Lies and Dangerous Rumors, on Tuesday. Looking down the track list one can see Big Boi has taken on a lot — it’s an ambitious project. He’s set out to unite the sounds of current indie alternative with southern rap. He has tracks featuring Little Dragon and Killer Mike, Phantogram and UGK. The songs that result are genre-bending and complex.