The Violin is a musical instrument featured only in the episodes, "Pain in the Ed" and "Smile for the Ed." Ed's mother forces him to play it for unknown reasons and Sarah makes sure he practices or else she will tell on her. In Eddy's opinion, he thinks that violins are for sissies, but to Edd, he thinks violins are not for sissies. Ed is not very skilled at playing it, as he instrument creates sour notes that apparently harm not only Eddy, but the rest of the kids in the Cul-de-Sac. Jonny, however, does not think Ed's music playing is horrible and comes to have a liking for Ed's music. After hearing the cacophonious music being played, Eddy desperately wanted to destroy his violin. However, it was later inadvertently destroyed by Edd when he trips and falls on the violin (ironic because he kept trying to save the violin prior to the instrument breaking). Ed then substitutes the destroyed violin by using Eddy's three hairs to practice to save his own skin (much to the latter's dismay and Sarah's enjoyment).
Nazz is shown to play the violin in music class in "Smile for the Ed."