When the song was originally recorded, it was originally recorded on 7-String Guitars tuned A#-A#-D#-G#-C#-F-A#. Due to the loose tension on the lowest string, Mårten and Fredrik only played the lowest string.Open D Tuning - D-A-D-A-D-F#-A-D3rd string half a step down. The eighth and seventh string is tuned down two full steps, the sixth string is tuned down a full step. The fifth and fourth strings are left alone and the two highest strings are tuned down a full step. This tuning has been used by Dean Murphy in some of his songs. Nine-string A continuation of the eight-string guitar, the nine-string guitar adds a string lower or higher.Standard 9-string tuning - C-F-B-E-A-d-g-b-e'.Used by Mick Gordon for the Doom soundtrack, and by Animals As Leaders for Private Visions of the World. Also used by Stephen Carpenter of Deftones on the album Ohms. LowerC tuning - C-F-A-D-G-c-f-a-dOne half step from standard tuning. B tuning - B-E-A-D-G-c-f-a-dOne full step from standard tuning. Gives the range of a five-string electric bass as well as a 6-string guitar in D tuning. HigherHigh A - F-B-E-A-d-g-b-e'-a' DroppedDrop E + B 9-string tuning - B-E-B-E-A-d-g-b-eGives the range of a five-string electric bass as well as a seven-string electric guitar in standard tuning. Used by Rings of Saturn for their song The Husk and Andrew Baena on "How to Sink".Drop B 9-string tuning - B-F-B-E-A-d-g-b-e9-string guitar in standard tuning with the lowest string dropped two half steps down to B0, the same note as on the lowest string of a 5-string electric bass. Used by Rob Scallon for his song Rogue and Andrew Baena on some songs such as "Massassi". Fractalize used this tuning on "Fault Lines" from the Immersion album, although they recorded it on 8-String Guitars. Double Drop A - A-E-A-E-A-d-g-b-eThis is the 7-string drop A tuning with another E and A string added one octave lower. Used by Rings of Saturn, and "Akuma" by Galactic Pegasus.Drop A 9-string tuning - A-E-A-D-G-c-f-a-dStandard 9-string tuning tuned one whole step down, and the lowest string dropped another whole step. A variant of this tuning is used by Josh Travis of Emmure (A-D-A-D-C(16 cents sharp)-C-G-G#-E). Mick Gordon also uses this tuning on the DOOM 2016 soundtrack for a couple tracks, notably "Flesh and Metal" (A-D-A-D-A-D-G-B-E). also a variation used by american deathcore band nitheful (A-E-A-D-A-D-G-B-E) on there most recent album release 'creation ov god' Drop G - G-D-G-C-F-a-d