I don't normally do this.  I originally posted this in bdbdbd's thread on Wii Music but felt it deserved a forum of it's own for greater discussion.  Here is the post is slightly edited form (for ease of understanding):

I just can't help but feel Myamoto missed something here.  Sure Wii Music is accessible for everyone but is it engaging? It strikes me as akin to going into a music store and dicking around on the keyboard.  Sure that's fun but if you buy one for the kids you know it'll only be used a few times before being retired to the closet. 

The Sim, WoW, GTA, GH, etc. are all accessible but also engaging.  They have elements that keep you wanting to come back for more.

The entire point of the Wii is to get people playing and playing together.

Playing Wii Music alone looks like a mild distraction. Fun to play the demo at the store but not worth bringing home.

Playing Wii Music with friends? Two problems: It seems either you're just playing a set song which you can't do wrong and arm flailing for the sake of arm flailing gets old - fast OR you can just play the insturments without playing a set song but since neither you nor your buddies know a damn thing about playing music it's going to sound like total crap. Like at E3. Not much fun either.

If they had something to reward you for playing well or to help you learn music or so you could record music and share it with your friends or ANYTHING that made Wii Music an enhancing experience rather than a novel distraction I would think this game would be huge.

Instead GH:WT offers all of that and Wii Music offers none. I would rather play GH:WT or even Samba de Amigo than Wii Music.

Now don't think I'm Nintendo hating either. I has the first to back John Lucas's claims that Nintendo would roar from 3rd to 1st with 20m sold in year 1. I totally preached the greatness and industry changing nature of Wii Fit. (And yes I use it to exercise - I don't even think of it as a game)

But where Wii Sports and Wii Fit gave you a sense of progression and engagement Wii Music does not. At least, not that we've been shown so far.

I bucked the trend in saying Wii would be a major success, I bucked the trend saying Wii Fit would be bigger than GTA IV (and it will) and I am again bucking the trend and predicting that Wii Music will be a (relative) flop compared to GH and RB or Wii Fit and Wii Play unless there is more to it than meets the eye (no Transformer pun intended)

Edit: New information has shown that you CAN record preformances of your playing a pre-rendered track then play it back and add more instruments.   That IS a positive sign but still not enough yet for me to change my prediction.

Withe the ammount of hate this game gets it is almost certain it won´t flop.

The hate has ammounted to tremendous publicity and if you are not interested in the game chanses are big you got interested because of the hate hype and that makes a lot of people curios.

 Obviously you're too lazy to read more than the title.  Trust me, I WANT Wii Music to be huge but I don't see it and that's from one of Wii's biggest and most ardent supporters.  I don't hate it but unlike the haters, I don't think it'll be the next Wii Fit.

It may not flop, and I'm fine with Wii owners wanting an alternative experience in gaming with the Wiimote and how the Wii is supposed to be a revolution, but this game just bothers me. I mean, I don't think it even meets the parameters of a game. There is no point to the game. You don't beat anthing, you don't need to learn any controls, and there is no challenge (from what people have said.) Isn't that like playing air guitar, except it costs money?

 Obvously I am not since I read it. Never said you hated it. I saidwith the ammount of hate this game gets it´s almost certain it won´t flop.

Just on this site I have seen about 20 to 30 people ssaying they will now get it because of the amount of bad hype and here in my my town and around I see the same reactions on people, the so called hardcore hating it and dissing it every chance and others noticing the game because of the hate and they actually get curios about the game and don´t see why the "hardcore" is hating it.

Fairly certain the point to any game is for it to be entertaining. Not everyone wants to be challenged by games. Your average GTA player often ignores the worthless missions, put in some cheats, goes crazy, and has fun. You're not suggesting "achieving" something in a video game amounts to something other than another form of entertainment and possibly empty self-indulgence are you?

@vaio - I'm considering buying extra copies just to give them away here. XD

It will not flop, because we have already seen some nintendo's dubious projects succeed in the past (Nintendogs is a good example, similar to wii music). the hate or Hype will not kill the game, no need to worry.

 Where and what time shall we meet on launch day to start our killing spree?

Wow, what a controversial stand! I am sure you are the first to voice it, though it may be because you were the first to arrive at the million f*king long line of people who want to said the same thing. I am sure you wil receive a lot of pat on the back from your follow fanatic for those though, it's good to be a sheep isn't it?

ROFL, I was just thinking the same when I read your comment. I was only going to buy one but now I am thinking buying more and have some kind of contest so I can decide who gets a copy.