Question: The fingerstyle genre of guitar music that originated in Hawaii guitar tuning, is traditional of where?

Context articles: Drop D tuning
Le Igi
Drop B tuning
DADGAD
Hauyani
El McMeen
E♭ tuning
B♭ tuning
Slack-key guitar
C tuning (guitar)

Drop D tuning, also known as DADGBE (from lowest to highest string), is an alternative, or scordatura, form of guitar tuning — specifically, a dropped tuning — in which the lowest (sixth) string is tuned down ("dropped") from the usual E of standard tuning (EADGBE, from lowest to highest string) by one whole step / a tone (2 frets) to D. Drop D tuning, as well as other lowered altered tunings, are often used with the electric guitar in heavy metal music.
 It is also used in blues, country, folk (often with acoustic guitar), and classical guitar.
Le Igi is a style of Slack Key guitar tuning traditional in Samoa.
Drop B tuning is a heavy metal guitar tuning for a six-string guitar where the strings are tuned to B-F#-B-E-G#-C# (or B-G♭-B-E-A♭-D♭).
 This is a "drop 1" tuning in the key of C# (i.e. tune the whole guitar down a minor third from standard tuning, then the 6th string is lowered an additional whole step down).
 As a result, it uses the same fingering as all other "drop" tunings.
DADGAD, or Celtic tuning is an alternative guitar tuning most associated with Celtic music, though it has also found use in rock, folk, metal and several other genres.
 Instead of the standard EADGBE tuning, the six guitar strings are tuned, from low to high, D2 A2 D3 G3 A3 D4.
 Tuning to DADGAD from standard is accomplished by tuning the first, second and sixth strings down a whole step (two frets).
 The result is an open D suspended fourth chord (see suspended chord).
 Being suspended, the open tuning is neither intrinsically major nor minor.
Hauyani is a guitar tuning and method used in Southeast Africa, derived from the term "Hawaiian" (see Hawaiian guitar).
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 It refers to both a trichord tuning, as well as playing the guitar using a guitar slide or similar improvised object.
 A common tuning is GECgec, and it is found in countries such as Zimbabwe, Zambia, Malawi, and Mozambique.
 The technique may be related to indigenous techniques of playing local monochords with a smooth object to create glissando.
Elmer Ellsworth McMeen, III (known as El McMeen) (born June 3, 1947 in Lewistown, Pennsylvania), is an acoustic steel-string fingerstyle guitarist.
 His specialty is fingerstyle arrangements of sung or strongly melodic pieces, ranging from the Irish genre, to hymns, gospel tunes and pop music.
 He has also composed instrumentals for guitar, and has published a book of Irish and Scottish instrumental music that he arranged for classical string trio (violin, viola and cello).
 That book is called Celtic Treasures for String Trio (Piney Ridge, 2005).
 He plays and arranges guitar music almost exclusively in the CGDGAD tuning.
 (That tuning, developed by English guitarist Dave Evans in the 1960s, is similar to a Hawaiian slack-key tuning [CGCGAD] called "C Ni'ihau" tuning.)
 "Acoustic Guitar" magazine (Oct. 2001, No. 106) called McMeen "the king of CGDGAD tuning".
E♭ (E‐flat) tuning or D♯ (D‐sharp) tuning is an alternative form of guitar tuning.
 It is based on the standard guitar tuning, except that all of the strings are lowered by one half‐step.
 The result looks like this: E♭ ‐A♭ ‐D♭ ‐G♭ ‐B♭ ‐E♭ (or D#-G#-C#-F#-A#-D#).
 The guitar is usually played identically to standard tuning, resulting in a heavier tone without requiring the guitarist to learn different chords or fingering.
B♭ tuning, or A♯ tuning, is a method of guitar tuning (and stringed instruments per se) in which all strings on a six-stringed instrument, most often guitar, are tuned down by 3 steps.
 For example, standard guitar tuning is E A D G B E. B♭ tuning starts by tuning the lowest string on a guitar E, to B♭ and then tuning all strings down in the same interval of 3 steps down.
Slack-key guitar is a fingerstyle genre of guitar music that originated in Hawaii.
 Its name refers to its characteristic open tunings: the English term is a translation of the Hawaiian "kī hōʻ alu", which means "loosen the [tuning] key".
 Most slack-key tunings can be achieved by starting with a guitar in standard tuning and detuning or "slacking" one or more of the strings until the six strings form a single chord, frequently G major.
C tuning is a type of guitar tuning.
 The strings of the guitar are tuned two whole steps lower than standard tuning.
 The resulting notes can be described most commonly as C-F-A♯-D♯-G-C or C-F-B♭-E♭-G-C.
 This is not be confused with C# tuning which is one and one half steps lower than standard tuning.