Musical Genres -- WIKIPEDIA articles
Outline of music http://en.wikipedia.org/wiki/Outline_of_music
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HISTORIC MUSIC GENRES (along with their subgenres & fusions)
Genealogy of musical genres http://en.wikipedia.org/wiki/Genealogy_of_musical_genres
Fusion music genres http://en.wikipedia.org/wiki/Category:Fusion_music_genres
Music genre http://en.wikipedia.org/wiki/Music_genre
(Art music = Formal/Classical; Traditional music = Folk)
Musical subgenres by genre http://en.wikipedia.org/wiki/Category:Musical_subgenres_by_genre
Lists of music genres http://en.wikipedia.org/wiki/Category:Lists_of_music_genres
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EXPERIMENTAL MUSIC
Trans-ethnic Music http://en.wikipedia.org/wiki/Experimental_music#Transethnicism
Neofolk Music http://en.wikipedia.org/wiki/Neofolk
Industrial Music http://en.wikipedia.org/wiki/Industrial_music
Minimalist Music http://en.wikipedia.org/wiki/Minimal_music
Improvisist Music http://en.wikipedia.org/wiki/Musical_improvisation
Serialist Music http://en.wikipedia.org/wiki/Serialism a.k.a. Post-tonalist (inaccurately, "A-tonalist")
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METAL MUSIC
Heavy metal subgenres http://en.wikipedia.org/wiki/Category:Heavy_metal_subgenres
Folk metal http://en.wikipedia.org/wiki/Folk_metal
List of folk metal bands http://en.wikipedia.org/wiki/List_of_folk_metal_bands
Folk metal musical groups http://en.wikipedia.org/wiki/Category:Folk_metal_musical_groups
Alternative metal http://en.wikipedia.org/wiki/Alternative_metal
Funk metal http://en.wikipedia.org/wiki/Funk_metal
Nu metal http://en.wikipedia.org/wiki/Nu_metal
Rap metal http://en.wikipedia.org/wiki/Rap_metal
Avant-garde_metal http://en.wikipedia.org/wiki/Avant-garde_metal a.k.a. experimental metal
Black_metal http://en.wikipedia.org/wiki/Black_metal
Viking_metal http://en.wikipedia.org/wiki/Viking_metal
Dark metal http://en.wikipedia.org/wiki/Dark_metal
Dark wave http://en.wikipedia.org/wiki/Dark_wave Subgenres : Coldwave, ethereal, goth rock, neoclassical,neofolk, neue deutsche todeskunst
Coldwave http://en.wikipedia.org/wiki/Coldwave
Ethereal wave http://en.wikipedia.org/wiki/Ethereal_wave
Neoclassical dark wave http://en.wikipedia.org/wiki/Neoclassical_dark_wave
Death metal http://en.wikipedia.org/wiki/Death_metal
Death n roll http://en.wikipedia.org/wiki/Death_%27n%27_roll
Melodic death metal http://en.wikipedia.org/wiki/Melodic_death_metal
Technical death metal http://en.wikipedia.org/wiki/Technical_death_metal
Doom_metal http://en.wikipedia.org/wiki/Doom_metal
Death-doom http://en.wikipedia.org/wiki/Death-doom
Drone_metal http://en.wikipedia.org/wiki/Drone_metal
Sludge metal http://en.wikipedia.org/wiki/Sludge_metal
Folk metal http://en.wikipedia.org/wiki/Folk_metal
Pagan metal http://en.wikipedia.org/wiki/Pagan_metal
Grindcore http://en.wikipedia.org/wiki/Grindcore
Deathgrind http://en.wikipedia.org/wiki/Deathgrind
Metalcore http://en.wikipedia.org/wiki/Metalcore
Melodic metalcore http://en.wikipedia.org/wiki/Melodic_metalcore
Deathcore http://en.wikipedia.org/wiki/Deathcore
Mathcore http://en.wikipedia.org/wiki/Mathcore
Neoclassical metal http://en.wikipedia.org/wiki/Neoclassical_metal
Post-metal http://en.wikipedia.org/wiki/Post-metal
Progressive metal http://en.wikipedia.org/wiki/Progressive_metal
Djent http://en.wikipedia.org/wiki/Djent
Speed_metal http://en.wikipedia.org/wiki/Speed_metal
Thrash metal http://en.wikipedia.org/wiki/Thrash_metal
Crossover thrash http://en.wikipedia.org/wiki/Crossover_thrash
Groove metal http://en.wikipedia.org/wiki/Groove_metal
Teutonic thrash metal http://en.wikipedia.org/wiki/Teutonic_thrash_metal
Neofolk http://en.wikipedia.org/wiki/Neofolk
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GENRES ARRANGED BY HISTORIC PERIODS (centuries Chr.Ai.)
17th century http://en.wikipedia.org/wiki/Category:17th-century_music_genres
18th century http://en.wikipedia.org/wiki/Category:18th-century_music_genres
19th century http://en.wikipedia.org/wiki/Category:19th-century_music_genres
20th century http://en.wikipedia.org/wiki/Category:20th-century_music_genres
21st century http://en.wikipedia.org/wiki/Category:21st-century_music_genres
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OTHER GENRES OF MUSIC
list of "darkwave or neoclassical music [bands]" https://answers.yahoo.com/question/index?qid=20110120010951AA2W7Ii
Pagan genre http://www.u42.ca/search-type/similar/pagan