The Twelve-step Suite (also known as the Twelve-step Saga or Alcoholics Anonymous Suite), is a series of five songs by progressive metal band Dream Theater. One song has featured on each Dream Theater studio album from Six Degrees of Inner Turbulence through to Black Clouds & Silver Linings. The lyrics to each song, written by drummer Mike Portnoy, deal with his experience of alcoholism. Each song represents a certain number of the Twelve Steps. Various lyrical and musical themes run through the Suite. It was written by the band with the intention of eventually playing it live as one piece.