“Where do pianists go for vacation?”/“The Florida Keys.”

The Florida Keys aren’t piano keys, but there’s a riddle:
 
Q: Where do pianists go for vacation?
Q: The Florida Keys.
 
The joke has been cited in print since at least 2005.
   
   
Wikipedia: Florida Keys
The Florida Keys are a coral cay archipelago located off the southern coast of Florida, forming the southernmost portion of the continental United States. They begin at the southeastern coast of the Florida peninsula, about 15 miles (24 km) south of Miami, and extend in a gentle arc south-southwest and then westward to Key West, the westernmost of the inhabited islands, and on to the uninhabited Dry Tortugas. The islands lie along the Florida Straits, dividing the Atlantic Ocean to the east from the Gulf of Mexico to the northwest, and defining one edge of Florida Bay.
   
Google Books
ROFL: rolling on the floor laughing joke book
New York, NY: Tangerine Press
2005
Pg. 4:
Where do pianists go for vacation?
Florida Keys.
 
Twitter
Richard D Parker 
@RichardDParker
Where do pianists go on vacation?—The Florida Keys.
3:11 PM - 21 Jun 2009
   
Twitter
Damon Nelson
@StormHelpers
Q: Where do the pianists go for vacation? A: Florida Keys
12:47 PM - 15 Sep 2009
     
Boston.com
Surfing the Net With Kids
By Barbara Feldman
March 25, 2011
(...)
“Where do pianists go for vacation? Florida Keys!’
 
Google Books
1001 Kid’s Jokes
By Kay Barnham
London, UK: Arcturus Publishing
2016
Pg. ?:
Where do pianists go on vacation?
The Florida Keys
 
Twitter
lorraine Jo King
@LahLahBean
#badjokefriday
Where do the pianists go for vacation?
Florida Keys.
1:20 AM - 2 Nov 2018