Black Ivory, an American R&B group formed in Harlem in 1969, was started by Leroy Burgess, Stuart Bascombe and Russell Patterson. The album Hangin’ Heavy (1979) opens with “Big Apple Rock,” a 10-minute long disco song.
   
The song doesn’t mention anything specific about New York City, but “We’re doin’ the Big Apple Rock” is sung.
     
   
Wikipedia: Black Ivory
Black Ivory is an American R&B group from Harlem, which had a number of hits in the 1970s, including “Don’t Turn Around”, “You and I” (which featured Larry Blackmon from Cameo on drums), “I’ll Find a Way (The Loneliest Man in Town)”, “Spinning Around”, “What Goes Around (Comes Around)”, “Will We Ever Come Together”, and “Mainline”.
(...)
The group recorded several uptempo songs in the disco vein, such as “Big Apple Rock”, “Walking Downtown (On a Saturday Night)”, “What Goes Around (Comes Around)” and, later, “Mainline” but, not being known for the style, they were unable to compete when disco became the dominant music style.
(...)
Members
Formed in Harlem, New York, in 1969.
 
. Leroy Burgess (born August 19, 1953), New York, New York
. Stuart Bascombe (born January 20, 1954), New York, New York
. Russell Patterson (born April 1, 1954), New York, New, York
       
OCLC WorldCat record
Hangin’ heavy.
Author: Black Ivory (Musical group)
Publisher: Buddah p©1979.
Edition/Format:   Music LP : No Linguistic Content
Contents: Big apple rock.—Get down (Comin’ down).—Peace & harmony.—Mainline.—Rest inside my love.—Hustlin’ (You gotta be dancin’ ).—You turned my whole world around.
 
Twitter
DJ Soul Sister
@djsoulsister
To whoever was responsible for mixing “Big Apple Rock” (1979) by Black Ivory that way, God bless you.
1:44 PM · Jul 24, 2011·Twitter SMS
   
Twitter
RangBirangi
@iamrangbirangi
#tweetameet
@NimbleSneha #NewYork \“Big Apple Rock\” by Black Ivory a song written about NYC
2:09 PM · Jul 22, 2012·Tweet A Meet
 
YouTube
Black Ivory - Big Apple Rock
Dec 14, 2012
Alby1afrofunkyEC
Black Ivory
Big Apple Rock
 
YouTube
Big Apple Rock
Mar 7, 2015
Stuart Bascombe
Provided to YouTube by RCA/Legacy
Big Apple Rock · Black Ivory