steps (one octave) down from Drop D. 8 string example; D-A-d-a-d-G-B-E. Black Tongue uses this tuning. Meshuggah also used it for "Obsidian" and "This Spiteful Snake".Drop C1/Drop D1 - C♯-G♯-c♯-F♯-A♯-D♯ / D♭-A♭-D♭-G♭-B♭-E♭Six full steps (one octave) down from Drop C/Drop D, Used by Loathe (C#-A-E-a-D-F/G)Drop C1 - C-G-c-F-A-DSix full steps (one octave) down from Drop C. Drop C/Drop D in standard variation - C-A-D-G-B-EStandard tuning but with the 6th string lowered one and a half steps. Used by Sevendust tuned one and a half-step down (which goes as: A#-F#-B-E-G#-C#) on some songs from Home through Alpha.Drop C in standard variation - C-A-D-G-B-EStandard tuning but with the 6th string lowered two whole steps. Used by Mark Tremonti on the song "My Champion" (tuned down a half-step; Myles is in Open F# tuning) as well as Sevendust on the song "Mountain" tuned down one and a half steps. (which goes A-F#-B-E-G#-C#) Also used by John Mayer on the song “Neon”, and by Chino Moreno of Deftones on some songs such as "Swerve City" , "Leathers" and "Hearts/Wires", tuned down a full step (A#-G-C-F-A-D), This variation was also used by Periphery on "Totla Mad" from their Self-Titled album and "Frak the Gods" on "Icarus EP".Drop B in standard variation - B-A-D-G-b-EClaimed to have been invented by guitarist Victor Griffin of Pentagram (who tunes it 1/2 step down). Also used in the songs "Rusty Cage" "Holy Water", and "Searching With My Good Eye Closed" by Soundgarden on their Badmotorfinger album, "Cowboy Hat", "Not Leavin' Yet" and some of "Silver Side Up" by Nickelback, "Gasoline", "Shadow on the Sun", "Bring Em Back Alive" and "The Worm" by Audioslave and "Prison Sex" by Tool. Today is the Day have used it on every album since Temple of the Morning Star, Shining use it on most of their album Blackjazz, and Black Label Society used this on much of their early material, often to emulate a 7-string guitar. Used also by Silverchair in the songs "One Way Mule" and "The Lever" from their album Diorama and Stephen Brodsky used this tuning a half step down (A#G#C#F#A#D#) in Cave In and Mutoid Man Drop B-E - B-E-D-G-b-eStandard tuning with the 6th and 5th string lowered two and a half steps down. Used by Tool in the songs "Parabol" and "Parabola".Drop A in standard variation - A-a-D-G-B-E: The 6th string is dropped to A while the other strings retain