This is getting into pretty ridiculous semantics, but if we accept Jonny's definition of toys as tools for entertainment, all games fit that defintion as well, so all games are toys. But not all toys are games. Games are a subset of toys. So saying "I don't want toys, I want games" is like saying "I don't want games, I want first-person shooters." Which doesn't make much sense because if you have a first-person shooter, you have a game, and if you have a game, you have a toy.
Wii Music is an electronic toy, but so is Resistance or any other Serious Game. Resistance may have more goals or rules, but in the end they're both just ways of entaining yourself* and killing time.
* Insert your own snide remark about how Wii Music isn't entertaining here.
This is such a reductive argument. It's like you don't even appreciate your own hobby. Why go head over heels to define games as meaningless, purposeless, useless - merely to justify a game company making a **** game?
Saying toys are tools for entertainment may miss the boat. All the posters here are right to compare toys and games because both involve "play." Games, though, structured and organize "play" into goals and restrictions. They often have real world counterparts, origins, or application. Games tell us about our culture's way of thinking, because games are a mental process. Toys are "create your own play" with absolutely no rules at all; they exist on a distractive level rather than an engaging one. Games can USE toys (ROB for instance). Wii Music, for all intents and purposes, is not a game. When we say "casual game" we're still referring to the typical definition of structured play: Wii Sports, Brain Age, Wii Fit all have the elements we define as "game." From the sounds of it, this has none of those elements.
My favorite thing about E3 is the reporting of impressions. No matter what we say, the audience here will retort "you're playing a demo, ergo you have no right to an opinion." Those who play the games are never trusted because "Nintendo/Miyamoto can do no wrong." Nevermind that Nintendo has been developing this thing for over 2 years, and they chose this moment to show it to us, and it plays as TYP has reported. Remember, E3 is the opportunity to show the best of what you have at the moment, and if TYP, a veteran of E3, says its the worst thing he's played at any E3 ever, I believe him.