There is “smooth jazz,” but no “rough jazz.” “Smooth jazz implies the existence of rough jazz” is a saying that has been printed on a popular image. Authorship of the saying is uncertain.
       
“Our own smooth jazz (is what we play rough jazz?) station sponsors not a few mainstream/straight ahead gigs” was posted on the newsgroup rec.music.bluenote on November 7, 1997. “It was trailed recently by an announcer who described the content as ‘smooth jazz’. Rightly incensed by this slander, Humph invited listeners to suggest examples of ‘rough jazz’ for him” was posted on the newsgroup rec.music.bluenote on October 10, 2002. “Is rough jazz the opposite of smooth jazz?” was posted on Twitter by Jon! on January 6, 2012. “How come there is ‘smooth jazz’ but no ‘rough jazz’?” was posted on Twitter by Vanessa on May 1, 2016.
   
“smooth jazz implies the existence of rough jazz” was posted on Twitter by gabby on April 22, 2019.  “The existence of smooth jazz means that rough jazz exists right?” was posted on Twitter by Justin_was_here on October 30, 2019. “Smooth Jazz implies the existence of Rough Jazz” was posted on Reddit—Showerthoughts on November 8, 2019.
 
“Smooth jazz implies the existence of chunky jazz” is a related saying.
     
         
Wikipedia: Smooth jazz
Smooth jazz is a genre of commercially oriented crossover jazz that became dominant in the 1980s and early 1990s.
     
Google Groups: rec.music.bluenote
More “smooth jazz” deceptions
skip elliott bowman
Nov 7, 1997, 3:00:00 AM
(...)
Oh what the hey. Go check it out. Our own smooth jazz (is what we play rough jazz?) station sponsors not a few mainstream/straight ahead gigs.
 
Google Groups: rec.music.bluenote
bye bye smooth jazz, hello rough jazz
Alan David Mills
Oct 10, 2002, 2:34:49 PM
In Britain, Humphrey Lyttelton has a weekly radio programme: “The Bestof Jazz”. It was trailed recently by an announcer who described the content as “smooth jazz”. Rightly incensed by this slander, Humph invited listeners to suggest examples of “rough jazz” for him
             
Twitter
Barby Niño
@BarbyNino
listening to smooth jazz at work…and wondering..is there such thing as rough jazz…
5:42 PM · May 29, 2009·Twitter Web Client
   
Twitter
John Gilbert
@John_Gilbert
If there’s such a thing as smooth jazz, why isn’t there something called rough jazz? Or hard jazz. Heavy jazz. Metal jazz, even.
1:26 PM · Apr 12, 2010·Twitter Web Client
 
Twitter
Ghulam Bogans
@TheRealIsaIbn
If there is smooth jazz, then is there rough jazz or not so smooth jazz? #curioustweet
7:32 AM · May 8, 2011·Mobile Web
 
Twitter
Jeremy
@jparsonsfilm
Why are there only smooth jazz stations? Where is the rough jazz? #fb
5:04 PM · Oct 8, 2011·Bad Kitty
   
Twitter
Jon!
@lilikoililikoi
Is rough jazz the opposite of smooth jazz?
4:58 PM · Jan 6, 2012·Twitter Web Client
   
Twitter
Vanessa
@nesstoth
How come there is “smooth jazz” but no “rough jazz”?
12:55 AM · May 1, 2016·Twitter for Android
   
Twitter
K.Flay
@kflay
i know about smooth jazz but i’d love to hear some rough jazz
sandpaper jazz
1:34 PM · Jun 29, 2018·Twitter for iPhone
 
Twitter   
gabby
@imfrogless
smooth jazz implies the existence of rough jazz
9:22 AM · Apr 22, 2019·Twitter for iPhone
   
Twitter
Justin_was_here
@Ju5t1n757
The existence of smooth jazz means that rough jazz exists right?
10:57 AM · Oct 30, 2019·Twitter for Android
   
Reddit—Showerthoughts
Posted by u/KarmicRetri November 8, 2019
Smooth Jazz implies the existence of Rough Jazz.
[removed]
 
Twitter
popcorn colonel
@claireisalright
“Smooth Jazz implies the existence of rough jazz”
2:04 PM · Nov 13, 2019·Twitter for iPhone
 
Twitter 
Eth1
@ETH1N1
Smooth jazz implies the existence of rough jazz - Instagram meme
2:19 PM · Nov 13, 2019·Twitter for Android
   
Reddit—Teenagers
Posted by u/neotic_reaper November 15, 2019
Smooth jazz implies the existence of rough jazz
       
Facebook
For The Weird Girls
November 20, 2019 at 9:02 AM ·
(The following text is shown on an image.—ed.)
Smooth jazz implies the existence of
rough jazz
 
Facebook
Mountainwolf
September 14, 2020 at 10:12 PM ·
smooth jazz implies the existence of rough jazz…
 
YouTube
Smooth Jazz Implies The Existence Of Rough Jazz (feat. Chris Dearing)
Sep 30, 2021
Lou Kelly - Topic
Provided to YouTube by DistroKid
Smooth Jazz Implies The Existence Of Rough Jazz (feat. Chris Dearing) · Lou Kelly
 
Twitter
Alex Wu’s Alter Ego
@YoungWalke
Does the existence of smooth jazz imply the existence of a “rough” jazz?
9:11 PM · Jan 5, 2022·Twitter Web App
 
Twitter
Erin Belleci
@erinbelleci
Smooth jazz implies the existence of rough jazz.
2:10 AM · Jan 6, 2022·Twitter for iPhone