now common in Celtic music. In rock music, has been used in Led Zeppelin's "Kashmir". Pierre Bensusan is another noted exponent of this tuning. The post-metal group Russian Circles also employ this tuning, and also plays it tuned a half-step down: D-A-d-g-a-d'. Four down-tuned variations are used by the band Sevendust: A Drop C# variation, or C-G-c-f-g-c', Also uses a variation where the lowest string is dropped to G on the song "Chop", A Drop C variation, or 'C-G-c-f-g-c'. (used on the song "Unraveling". Also uses a variation where the lowest string is dropped to G, used on some songs from Kill the Flaw and the song "Life Deceives You"), a Drop B variation, or B'-F-B-e-f-b, and a Drop A# variation, or A'-F-A-d-f-a. Neighboring tunings D-A-d-e-a-e' and C-G-c-d-g-a have been used by Martin Carthy, and D-A-d-a-a-d' was used by Dave Wakeling on the English Beat's 1983 "Save It For Later" and by My Bloody Valentine on the song "Sometimes" from Loveless (1991). Dad-Dad D-A-d-d-a-d' Nicknamed - "Papa-Papa". DADDAD is common in folk music (Irish, Scottish), and for the execution of a rhythm guitar in "heavy" (alternative music) on 6th on the third string at the same time. To reach the tuning from DADGAD, Open D or Open D Minor, the G string is dropped to D so that the 3rd and 4th strings are tuned to the same pitch. DADDAD tuning is sometimes used on Dobro guitars for rock and blues. Notable users of this tuning include Billy McLaughlin and John Butler. Cello/Standard guitar C-G-d-a-b-e' Essentially a cello tuning with the deeper four strings in fifths and the two highest strings in standard guitar tuning. Used on numerous Pavement songs (including Cut Your Hair and by Foo Fighters on the song "Weenie Beenie". "Karnivool" tuning B-F-b-g-b-e' Hybrid tuning between drop B-tuning and E-standard. Used by the band Karnivool for many of their songs. Variation: B-F-b-f-b-e' The hybrid tuning with the 3rd string lowered a half-step to create a larger power chord, Also used by Karnivool. Mi-composé E-A-d'-g-b-e' Mi-composé is a tuning commonly used for rhythm guitar in African popular music forms such as soukous and makossa. It is similar to the standard guitar tuning, except that the d string is raised an entire octave. This is accomplished by replacing the d string with an e' string and tuning it to d'. "Iris" Tuning B-D-D-D-d-d Tuning used by Johnny Rzeznik of