Canonical List of Banjo jokes
List of numerous banjo jokes.
http://www.bluegrassbanjo.org/banjokes.html

The Humor Lounge - Cello Humor
Humor about cellists and the other members of the string family.
http://www.wimmercello.com/humor.html

Instrument Jokes
From accordion to viola.
http://www.mit.edu/people/jcb/jokes/

Music Humor
Music-related jokes, stories, anecdotes. Joke of the day. Submit your own humor.
http://www.musicandaudio.com/humour.htm

Violin World Music Jokes
Jokes in the form of an admission test for the BBC Orchestra.
http://www.violin-world.com/jokes/

MasterBlasto Air Guitar Company
Manufacturers of virtual instruments.
http://www.airguitar.com/

Piano Jokes
Jokes and other humor relating to pianists and their instruments.
http://members.tripod.com/playitagaindamon/Jokes.html

PianoParadise
Piano trivia and jokes.
http://www.pianoparadise.com/humor.html

Music Jokes
Categories related to music, musicians, bands and instruments.
http://www.music-jokes.co.uk

Music Prank
A collection of musician and musical instrument jokes.
http://www.music-prank.com/

The Jazz Jam Session Primer: A First-Timer's Guide
Narrative giving descriptions of gigs and the performers from an outsider's perspective.
http://www.allowe.com/Humor/book/The%20Jazz%20Jam%20Session%20Primer.htm

Viola Jokes
A collection of viola jokes.
http://www.mit.edu:8001/people/jcb/viola-jokes.html