Jump to content
 







Main menu
   


Navigation  



Main page
Contents
Current events
Random article
About Wikipedia
Contact us
Donate
 




Contribute  



Help
Learn to edit
Community portal
Recent changes
Upload file
 








Search  

































Create account

Log in
 









Create account
 Log in
 




Pages for logged out editors learn more  



Contributions
Talk
 



















Contents

   



(Top)
 


1 1970s jazz standards  





2 1970  



2.1  Events  





2.2  Album releases  





2.3  Deaths  





2.4  Births  







3 1971  



3.1  Album releases  





3.2  Deaths  





3.3  Births  







4 1972  



4.1  Events  





4.2  Album releases  





4.3  Deaths  





4.4  Births  







5 1973  



5.1  Album releases  





5.2  Deaths  





5.3  Births  







6 1974  



6.1  Album releases  





6.2  Deaths  





6.3  Births  







7 1975  



7.1  Album releases  





7.2  Deaths  





7.3  Births  







8 1976  



8.1  Album releases  





8.2  Deaths  





8.3  Births  







9 1977  



9.1  Album releases  





9.2  Deaths  





9.3  Births  







10 1978  



10.1  Album releases  





10.2  Deaths  





10.3  Births  







11 1979  



11.1  Album releases  





11.2  Deaths  





11.3  Births  







12 References  














1970s in jazz







Add links
 









Article
Talk
 

















Read
Edit
View history
 








Tools
   


Actions  



Read
Edit
View history
 




General  



What links here
Related changes
Upload file
Special pages
Permanent link
Page information
Cite this page
Get shortened URL
Download QR code
Wikidata item
 




Print/export  



Download as PDF
Printable version
 
















Appearance
   

 






From Wikipedia, the free encyclopedia
 


Art Blakey, 1973

In the 1970s in jazz, jazz became increasingly influenced by Latin jazz, combining rhythms from African and Latin American countries, often played on instruments such as conga, timbale, güiro, and claves, with jazz and classical harmonies played on typical jazz instruments (piano, double bass, etc.). Artists such as Chick Corea, John McLaughlin and Al Di Meola increasingly influenced the genre with jazz fusion, a hybrid form of jazz-rock fusion which was developed by combining jazz improvisation with rock rhythms, electric instruments, and the highly amplified stage sound of rock musicians such as Jimi Hendrix. All Music Guide states that "..until around 1967, the worlds of jazz and rock were nearly completely separate." However, "...as rock became more creative and its musicianship improved, and as some in the jazz world became bored with hard bop and did not want to play strictly avant-garde music, the two different idioms began to trade ideas and occasionally combine forces."[1] On June 16, 1972 the New York Jazz Museum opened in New York City at 125 West 55th Street in a one and one-half story building. It became the most important institution for jazz in the world with a 25,000 item archive, free concerts, exhibits, film programs, etc.

Carlos Santana, one of the pioneers of the Latin jazz-fusion genre

Miles Davis made the breakthrough into fusion in the 1970s with his album Bitches Brew. Musicians who worked with Davis formed the four most influential fusion groups: Weather Report and Mahavishnu Orchestra emerged in 1971 and were soon followed by Return to Forever and The Headhunters. Although jazz purists protested the blend of jazz and rock, some of jazz's significant innovators crossed over from the contemporary hard bop scene into fusion. Jazz fusion music often uses mixed meters, odd time signatures, syncopation, and complex chords and harmonies. In addition to using the electric instruments of rock, such as the electric guitar, electric bass, electric piano, and synthesizer keyboards, fusion also used the powerful amplification, "fuzz" pedals, wah-wah pedals, and other effects used by 1970s-era rock bands. Notable performers of jazz fusion included Miles Davis, keyboardists Joe Zawinul, Chick Corea, Herbie Hancock, vibraphonist Gary Burton, drummer Tony Williams, violinist Jean-Luc Ponty, guitarists Larry Coryell, Al Di Meola, John McLaughlin and Frank Zappa, saxophonist Wayne Shorter, and bassists Jaco Pastorius and Stanley Clarke. Jazz fusion was also popular in Japan where the band Casiopea released over thirty albums praising Jazz Fusion.

In the mid-1970s, jazz funk became popular, characterized by a strong back beat (groove), electrified sounds,[2] and often, the presence of the first electronic analog synthesizers. The integration of funk, soul, and R&B music and styles into jazz resulted in the creation of a genre whose spectrum is indeed quite wide and ranges from strong jazz improvisation to soul, funk or disco with jazz arrangements, jazz riffs, and jazz solos, and sometimes soul vocals.[3]

Reader's Digest measured the most popular forms of jazz from 1910 to the 1970s, and the 1970 to 1975 part of the chart listed modern jazz or bebop as the most popular subgenre, blues as the second-most popular form, ragtime revival and other traditional forms as the third-most, free jazz as fourth-most, jazz rock as the fifth-most popular, and big band as the least popular.[4]

1970s jazz standards[edit]

1970[edit]

Events[edit]

Album releases[edit]

  • Miles Davis: Bitches Brew
  • Marion Brown: Afternoon of a Georgia Faun
  • Alice Coltrane: Ptah, the El Daoud
  • McCoy Tyner: Extensions
  • Art Ensemble of Chicago: Les Stances a Sophie
  • Sonny Sharrock: Monkey-Pockie-Boo
  • Freddie Hubbard: Straight Life
  • Art Ensemble of Chicago: Art Ensemble of Chicago with Fontella Bass
  • Pharoah Sanders: Deaf Dumb Blind (Summun Bukmun Umyun)
  • Jan Garbarek: Afric Pepperbird
  • Evan Parker: The Topography of the Lungs
  • Herbie Hancock: Mwandishi
  • Spontaneous Music Ensemble: So What Do You Think
  • Alice Coltrane: Journey in Satchidananda
  • Stanley Turrentine: Sugar
  • Woody Shaw: Blackstone Legacy
  • Freddie Hubbard: Red Clay
  • McCoy Tyner: Asante
  • Leon Thomas: The Leon Thomas Album
  • Hubert Laws: Afro-Classic
  • John McLaughlin: My Goal's Beyond
  • ICP Orchestra: Groupcomposing
  • Guenter Hampel: People Symphony
  • Keith Tippett: Dedicated To You But You Weren't Listening
  • Misha Mengelberg: Instant Composers Pool 005
  • Guenter Hampel: Ballet-Symphony
  • Chris McGregor: Chris McGregor's Brotherhood of Breath
  • Joe McPhee: Nation Time
  • Deaths[edit]

    Births[edit]

    1971[edit]

    Album releases[edit]

  • Charles Mingus: Let My Children Hear Music
  • Paul Bley: Dual Unity
  • Art Ensemble of Chicago: Phase One (1971)
  • Mahavishnu Orchestra: The Inner Mounting Flame
  • Weather Report: Weather Report
  • Jean-Luc Ponty: Open Strings
  • Pharoah Sanders: Black Unity
  • Lol Coxhill: Ear of the Beholder
  • Keith Jarrett: Facing You
  • Mike Westbrook: Metropolis
  • Willem Breuker: Instant Composers Pool 008
  • Jan Garbarek: Sart
  • Chick Corea: The Gathering
  • Keith Tippett: Septober Energy
  • George Russell: Listen to the Silence
  • Ornette Coleman: Science Fiction
  • Spontaneous Music Ensemble: So What Do You Think
  • Derek Bailey: Solo Guitar
  • Freddie Hubbard: First Light
  • Keith Jarrett: Expectations
  • Chick Corea: Piano Improvisations Vol. 1 and Vol. 2
  • Joe Zawinul: Zawinul
  • Joe McPhee: Trinity
  • Oliver Nelson: Swiss Suite
  • Terje Rypdal: Terje Rypdal
  • Alice Coltrane: Universal Consciousness
  • Paul Winter: Icarus
  • Alice Coltrane: World Galaxy
  • Paul Winter: Road
  • Donald Byrd: Ethiopian Knights
  • Tim Weisberg: Tim Weisberg
  • Don Ellis: Tears of Joy
  • Deaths[edit]

    Births[edit]

    1972[edit]

    Events[edit]

    Album releases[edit]

  • Dave Holland: Conference of the Birds
  • McCoy Tyner: Sahara
  • London Jazz Composers Orchestra: Ode
  • Weather Report: I Sing the Body Electric
  • Jean-Luc Ponty: Sonata Erotica
  • Herbie Hancock: Crossings
  • John Surman: Westering Home
  • Chick Corea: Light as a Feather
  • Guenter Hampel: Familie
  • Chick Corea: Return to Forever
  • Paul Motian: Conception Vessel
  • Neil Ardley: Symphony of Amaranths
  • David Liebman: Open Sky
  • Ornette Coleman: Skies of America
  • Gato Barbieri: Bolivia
  • Eric Kloss: One, Two, Free
  • Gary Burton: Crystal Silence
  • Guenter Hampel: Angel
  • Albert Mangelsdorff: Trombirds
  • Julius Hemphill: Dogon AD
  • Randy Weston: Tanjah
  • Guenter Hampel: Waltz For 11 Universes In A Corridor
  • Joe Henderson: Black Is the Color
  • Guenter Hampel: Broadway
  • Nucleus: Belladonna
  • Miles Davis: On The Corner
  • Oregon: Music Of Another Present Era
  • Paul Bley: Open, to Love
  • George Russell: Living Time
  • McCoy Tyner: Echoes of a Friend
  • Mahavishnu Orchestra: Birds of Fire
  • Stanley Cowell: Illusion Suite
  • Stanley Clarke: Children of Forever
  • Gary Bartz: Juju Street Songs
  • Airto Moreira: Free
  • Deaths[edit]

    Births[edit]

    1973[edit]

    McCoy Tyner in 1973

    Album releases[edit]

  • Roland Kirk: Prepare Thyself To Deal With A Miracle
  • Dollar Brand: Sangoma
  • Art Ensemble of Chicago: Fanfare For The Warriors
  • Don Cherry: Relativity Suite
  • Cecil Taylor: Spring of Two Blue J's
  • Keith Jarrett: Solo Concerts
  • McCoy Tyner: Enlightenment
  • Carla Bley: Tropic Appetites
  • Dollar Brand: African Space Program
  • Marion Brown: Geechee Recollections
  • Herbie Hancock: Sextant
  • Frank Wright: Church Number Nine
  • Gato Barbieri: Latin America
  • Frank Lowe: Black Beings
  • Ralph Towner: Diary
  • Dewey Redman: The Ear of the Behearer
  • Eberhard Weber: The Colours of Chloë
  • Roswell Rudd: Numatik Swing Band
  • Oregon: Distant Hills
  • Dollar Brand: African Portraits
  • Weather Report: Sweetnighter
  • David Liebman: Lookout Farm
  • Oscar Peterson: The Trio
  • Cecil Taylor: Solo
  • John Surman: Morning Glory
  • Betty Carter: Album
  • Mal Waldron: Up Popped the Devil
  • Michael Mantler: No Answer
  • Billy Cobham: Spectrum
  • Herbie Hancock: Head Hunters
  • Spontaneous Music Ensemble: Mouthpiece
  • Charles Earland: Leaving This Planet
  • Flora Purim: Butterfly Dreams
  • Herbie Hancock: Thrust
  • Billy Cobham: Crosswinds
  • Deaths[edit]

    Births[edit]

    1974[edit]

    Album releases[edit]

  • Sam Rivers: Crystals
  • Cecil Taylor: Silent Tongues
  • Steve Lacy: Saxophone Special
  • Jeanne Lee: Conspiracy
  • Leo Smith: Reflectativity
  • Weather Report: Mysterious Traveller
  • Randy Weston: Blues To Africa
  • Marion Brown: Sweet Earth Flying
  • Paul Rutherford: The Gentle Harm of the Bourgeoisie
  • Marvin Peterson: Children of the Fire
  • John Abercrombie: Timeless
  • Roswell Rudd: Flexible Flyer
  • McCoy Tyner: Atlantis
  • Globe Unity Orchestra: Hamburg '74
  • Cecil McBee: Mutima
  • Mahavishnu Orchestra: Apocalypse
  • Ralph Towner: Solstice
  • Terje Rypdal: Whenever I Seem to Be Far Away
  • Roscoe Mitchell: Solo Saxophone Concerts
  • Steve Kuhn: Ecstasy
  • Joe McPhee: Pieces of Light
  • Keith Jarrett: Death and the Flower
  • Steve Kuhn: Trance
  • Steve Lacy: Scraps
  • David Liebman: Drum Ode
  • Kenny Barron: Peruvian Blue
  • Tete Montoliu: Music for Perla
  • Bill Watrous: Manhattan Wildlife Refuge
  • Lonnie Liston Smith: Expansions
  • Mike Gibbs: Only Chrome Waterfall
  • McCoy Tyner: Sama Layuca
  • Oregon: Winter Light
  • Billy Cobham: Total Eclipse
  • Deaths[edit]

    Duke Ellington died on May 24

    Births[edit]

    1975[edit]

    Joe Pass, 1975

    Album releases[edit]

  • Revolutionary Ensemble: The People's Republic
  • Miles Davis: Agharta
  • Evan Parker: Saxophone Solos
  • Leroy Jenkins: For Players Only
  • Air: Air Song
  • Oliver Lake: Heavy Spirits
  • Kenny Wheeler: Gnu High
  • Om: Kirikuki
  • Terje Rypdal: Odyssey
  • Steve Lacy: Dreams
  • Pat Metheny: Bright Size Life
  • Anthony Braxton: Five Pieces 1975
  • Don Pullen: Solo Piano Album
  • Dexter Gordon: Bouncing' with Dex
  • Michael Mantler: Michael Mantler - Carla Bley
  • Sonny Sharrock: Paradise
  • Dudu Pukwana: Diamond Express
  • Kenny Barron: Lucifer
  • Frank Lowe: The Flam
  • John Surman: S.O.S.
  • Don Pullen: Healing Force
  • Miles Davis: Get Up With It
  • Julius Hemphill: Coon Bid'ness
  • Gateway Trio: Gateway
  • Collin Walcott: Cloud Dance
  • Don Moye: Sun Percussion
  • Martial Solal: Nothing But Piano
  • Eberhard Weber: Yellow Fields
  • Don Pullen: Five to Go
  • Charles Tolliver: Impact
  • Lol Coxhill: Welfare State
  • David Liebman: Forgotten Fantasies
  • Joe McPhee: The Willisau Concert
  • Yosuke Yamashita: Chiasma
  • Michael Mantler: The Hapless Child
  • Dollar Brand: Soweto
  • Don Pullen: Capricorn Rising
  • Stanley Clarke: Journey to Love
  • Enrico Rava: The Pilgrim and the Stars
  • Manhattan Transfer: Manhattan Transfer
  • Deaths[edit]

    Births[edit]

    1976[edit]

    Album releases[edit]

  • George E. Lewis: Solo Trombone Record
  • Miles Davis: Pangaea
  • Air: Air Raid
  • David Murray: Flowers for Albert
  • Derek Bailey: Company 1
  • Jan Garbarek: Dis
  • Irene Schweizer: Wilde Señoritas
  • Toshiko Akiyoshi: Road Time
  • Albert Mangelsdorff: Tromboneliness
  • Leo Smith: Song of Humanity
  • Tony Coe: Zeitgeist
  • Ornette Coleman: Dancing in Your Head
  • Jaco Pastorius: Jaco Pastorius
  • Martial Solal: Movability
  • Hamiet Bluiett: Endangered Species
  • Art Lande: Rubisa Patrol
  • Chick Corea: Romantic Warrior
  • George Adams: Suite for Swingers
  • Jean-Luc Ponty: Imaginary Voyage
  • David Friesen: Star Dance
  • Dexter Gordon: Biting the Apple
  • Joachim Kuhn: Springfever
  • Eberhard Weber: The Following Morning
  • Lew Tabackin: Dual Nature
  • Chico Freeman: Morning Prayer
  • Weather Report: Black Market
  • Charles Tyler: Saga of the Outlaws
  • Al Di Meola: Land of the Midnight Sun
  • Woody Shaw: Little Red's Fantasy
  • Stanley Clarke: School Days
  • Yosuke Yamashita: Banslikana
  • Ran Blake: Wende
  • Guenter Christmann: Solomusiken Fuer Posaune und Kontrabasse
  • Egberto Gismondi: Danca Das Cabecas
  • Deaths[edit]

    Births[edit]

    1977[edit]

    Ben Riley Heath Brothers, 1977

    Album releases[edit]

  • Air: Air Time
  • George E. Lewis: Shadowgraph
  • Joe McPhee: Graphics
  • James Ulmer: Revealing
  • Pat Metheny: Watercolors
  • John Scofield: East Meets West
  • Leroy Jenkins: Solo Concert
  • Julius Hemphill: Blue Boyé
  • Michael Mantler: Movies
  • Abdul Wadud: By Myself
  • Roscoe Mitchell: Nonaah
  • Joanne Brackeen: Tring A Ling
  • Art Lande: Desert Marauders
  • Chico Freeman: Kings of Mali
  • Art Pepper: No Limit
  • Arthur Blythe: Metamorphosis
  • Collin Walcott: Grazing Dreams
  • David Friesen: Waterfall Rainbow
  • Dave Holland: Emerald Tears
  • Neil Ardley: Kaleidoscope of Rainbows
  • Chico Freeman: Chico
  • Frank Lowe: Lowe and Behold
  • Vinny Golia: Spirits In Fellowship
  • Weather Report: Heavy Weather
  • Ernie Krivda: Satanic
  • Derek Bailey: Company 5
  • Chico Freeman: No Time Left
  • Paul Motian: Dance
  • Hamiet Bluiett: SOS
  • Jan Garbarek: Places
  • World Saxophone Quartet: Point Of No Return
  • John Tchicai: Real
  • Julius Hemphill: Raw Materials and Residuals
  • George Russell: Vertical Form 6
  • Joanne Brackeen: Aft
  • Julius Hemphill: Roi Boyé & the Gotham Minstrels
  • Kenny Wheeler: Deer Wan
  • Irene Schweizer: Hexensabbat
  • Leroy Jenkins: Lifelong Ambitions
  • Globe Unity: Pearls
  • Ralph Towner: Sound and Shadows
  • Hamiet Bluiett: Birthright
  • Jean-Luc Ponty: Enigmatic Ocean
  • Muhal Richard Abrams: 1-OQA+19
  • Cecil McBee: Music From the Source
  • Steve Lacy: Raps
  • Woody Shaw: Rosewood
  • Gateway Trio: 2
  • Louis Hayes: The Real Thing
  • McCoy Tyner: Supertrios
  • Al Di Meola: Elegant Gypsy
  • Michael Urbaniak: Urbaniak
  • Keith Jarrett: My Song
  • Arthur Blythe: Bush Baby
  • Sheila Jordan: Sheila
  • Deaths[edit]

    Births[edit]

    1978[edit]

    Bill Evans, Montreaux Jazz Festival, 1978

    Album releases[edit]

  • Roscoe Mitchell: L-R-G / The Maze / S II Examples
  • Leroy Jenkins: The Legend of Ai Glatson
  • Rova Saxophone Quartet: Cinema Rovate
  • Gerry Hemingway: Kwambe
  • Sam Rivers: Waves
  • George E. Lewis: Imaginary Suite
  • Don Pullen: Warriors
  • Guenter Hampel: Oasis
  • Cecil Taylor: 3 Phasis
  • John Oswald: Improvised
  • Andrew Cyrille: Metamusicians' Stomp
  • Ralph Towner: Batik
  • Art Ensemble of Chicago: Nice Guys
  • Carla Bley: Musique Mecanique
  • Air: Open Air Suit
  • Marvin Peterson: The Light
  • Anthony Davis: Of Blues and Dreams
  • David Liebman: Pendulum
  • Pat Metheny: Pat Metheny Group
  • Ernie Krivda: The Alchemist
  • Evan Parker: Monoceros
  • Anthony Braxton: For Four Orchestras
  • Ganelin Trio: Concerto Grosso
  • Cecil Taylor: Cecil Taylor Unit
  • James Ulmer: Tales of Captain Black
  • Oliver Lake: Life Dance Of Is
  • Lester Bowie: African Children
  • World Saxophone Quartet: Steppin' with
  • Arthur Blythe: Lenox Avenue Breakdown
  • Paul Winter: Common Ground
  • Kenny Barron: Innocence
  • Fred Anderson: Another Place
  • Guenter Hampel: Freedom of the Universe
  • Dewey Redman: Soundsigns
  • Misha Mengelberg: Pech Onderweg
  • Max Roach & Anthony Braxton: Birth and Rebirth
  • Chico Freeman: The Outside Within
  • Egberto Gismondi: Solo
  • Deaths[edit]

    Births[edit]

    1979[edit]

    Album releases[edit]

  • Lesli Dalaba: Trumpet Songs And Dances[15]
  • Anthony Braxton: Alto Saxophone Improvisations 1979
  • Dollar Brand: African Marketplace
  • Martial Solal: Four Keys
  • Old And New Dreams: Old and New Dreams
  • Terje Rypdal: Descendre
  • Jack DeJohnette: Special Edition
  • Andrew Cyrille: Nuba
  • James Newton: Mystery School
  • Art Pepper: Straight Life
  • Anthony Davis: Hidden Voices
  • Errol Parker: Doodles[16]
  • Niels-Henning Ørsted Pedersen: Dancing On The Tables
  • Amina Claudine Myers: Song For Mother Earth
  • George E. Lewis: Homage to Charles Parker
  • Paul Motian: Le Voyage
  • Bunky Green: Places We've Never Been
  • John Surman: Upon Reflection
  • Joseph Jarman: The Magic Triangle
  • Max Roach & Anthony Braxton: One in Two – Two in One
  • Woody Shaw: Woody III
  • Max Roach: Pictures in a Frame
  • Ralph Towner: Solo Concert
  • Kenny Wheeler: Around 6
  • Billy Bang: Distinction Without a Difference
  • Cecil McBee: Alternate Spaces
  • Fred Anderson: Dark Day
  • Al Di Meola: Splendido Hotel
  • String Trio of New York: First String
  • Pat Metheny: American Garage
  • Billy Bang: Sweet Space
  • Paul Lytton: The Inclined Stick
  • Warren Vaché: Polished Brass
  • Eberhard Weber: Fluid Rustle
  • Guenter Christmann: Weavers
  • Michael Franks: Tiger in the Rain
  • Deaths[edit]

    Births[edit]

    References[edit]

    1. ^ "Explore: Fusion". AllMusic. Retrieved November 28, 2010.
  • ^ "Free Jazz-Funk Music: Album, Track and Artist Charts". Rhapsody Online — Rhapsody.com. Archived from the original on September 20, 2008. Retrieved November 28, 2010.
  • ^ "allmusic". allmusic. Retrieved November 28, 2010.
  • ^ Calkins, Caroll C.; Balaban, Priscilla B.; Kelleher, Mary; Latham, Frank B.; Conefrey, Rosemarie; Huber, Robert V.; Pace, Georgea A.; Woodward, Robert J., eds. (1975). The Story of America. United States: Reader's Digest. pp. 398–399.
  • ^ The New Real Book, Volume II, p. 339
  • ^ The Real Book, Volume II, p. 244
  • ^ The Real Book, Volume I, p. 338
  • ^ The Real Book, Volume II, p. 79
  • ^ The Real Book, Volume II, p. 268
  • ^ Send in the Clownsatjazzstandards.com - retrieved on February 20 * 1974–2009 Archived March 6, 2012, at the Wayback Machine
  • ^ The Real Book, Volume I, p. 41
  • ^ The New Real Book, Volume II, p. 20
  • ^ The Real Book, Volume II, p. 46
  • ^ 8:30 review on Allmusic - retrieved on November 28, 2010
  • ^ "Lesli Dalaba, Wayne Horvitz, Polly Bradfield - Trumpet Songs And Dances". Discogs. Retrieved 2010-11-28.
  • ^ "Jazz journal international, Volume 43". Billboard Limited. 1990. {{cite journal}}: Cite journal requires |journal= (help)

  • Retrieved from "https://en.wikipedia.org/w/index.php?title=1970s_in_jazz&oldid=1231212601"

    Categories: 
    1970s in music
    20th century in jazz
    Jazz by decade
    1970s decade overviews
    Hidden categories: 
    Webarchive template wayback links
    CS1 errors: missing periodical
    Articles with short description
    Short description is different from Wikidata
    Articles with J9U identifiers
    Articles with LCCN identifiers
     



    This page was last edited on 27 June 2024, at 02:53 (UTC).

    Text is available under the Creative Commons Attribution-ShareAlike License 4.0; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization.



    Privacy policy

    About Wikipedia

    Disclaimers

    Contact Wikipedia

    Code of Conduct

    Developers

    Statistics

    Cookie statement

    Mobile view



    Wikimedia Foundation
    Powered by MediaWiki