intro to the title track from Alter Bridge's album, Fortress. The tuning is in a variation of open D5, a half step down. Tremonti states that the song was written in that tuning in an interview I watched. E|----------------|---------------|---------------|---------------| B|----------------|---------------|---------------|---------------| G|----12-----12---|---12-----12---|---12-----12---|---12-----12---| D|--0----0-0----0-|-0----0-0----0-|-0----0-0----0-|-0----0-0----0-| A|----------------|---------------|---------------|---------------| E|----------------|---------------|---------------|---------------| E|-------------------|-------------------|-------------------| B|-------------------|-------------------|-------------------| G|-----12------12----|-----12------12----|-----12------12----| D|----------0------0-|----------0------0-|----------0------0-| A|--13---13----------|--13---13----------|--12---12----------| E|-------------------|-------------------|-------------------| E|-------------------| B|-------------------| G|-----12------12----| D|----------0------0-| A|-------------------| E|--10---10----------|