Baba Brinkman The Rap Guide to Religion Conversational Philosophical Hip-Hop Album [2015] The Rap Guide to Religion by Baba Brinkman
Greydon Square Type I: The Kardashev Scale Philosophical Sci-Fi Hip-Hop Album [2010] Type I : The Kardashev Scale by Greydon Square
Greydon Square The Compton Effect Hardcore Philosophy Hip-Hop Album [2007] The Compton Effect by Greydon Square