Artist : Dream TheaterAlbum Octavarium (2005)1. The Root Of All Evil2. The Answer Lies Within3. These Walls4. I Walk Beside You5. Panic Attack6. Never Enough7. Sacrificed Sons8. OctavariumPersonnelMike Portnoy - Drums, co-producerJohn Petrucci - Guitars, co-producerJohn Myung - BassJames LaBrie - VocalsJordan Rudess - Keyboards, continuum, lap steel guitar.