A common complaint about bands like AC/DC is that they've been writing and recording the same album for twenty years. A further criticism is that all of their songs are the same. This is not quite true. I cataloged the various AC/DC songs in 2008. Following a long-standing argument between me and Eric regarding the true number of AC/DC songs (six or four), I present the following analysis of the six songs of AC/DC. This analysis is on the music, not the lyrics, which would be the subject of a different post.