“21 Concepts (But a Hit Ain’t One)” was begun in the summer 2004 and completed in the winter of 2010. The album’s title comes from a track called “21 Concepts” from the 2006 release “the Graduate” in which I rapped about twenty-one left-of-center lyric ideas. “The songwriting process is a lot like Tetris,” I say whenever I play the song live, “sometimes you’ve got to stack...