If you happen to have a few spare minutes — consider checking out this video of a band called Plastica performing Dream Theater's “Erotomania” using cheap musical instruments that were made for children.
Apparently, Plastica do — or did? — this sort of thing all the time.
According to the band: "The whole middle part is a big, fat joke, but in Rob's (the guitarist's) defense, he really can play all those arpeggios, just not on a goddamned Barbie guitar."
“Erotomania” is from Dream Theater's 1994 album, Awake. We've included Dream Theater's version of the song (bottom video) for a bit of context. Enjoy!