I purchased this game for my younger children and wondered if it was possible for them to use the guitar or drums from WII Rock Band World Tour with it?
In my opinion your kids would have much more fun with Either "Rock Band 2" Or "Guitar Hero World Tour" , you can buy both with just the guitar which is great fun,and also you have the option to buy the whole kit - drums/Guitar/Microphone.
Of course that only my opinion
On the other hand why would anyone want to fiddle with a wiimote along to god-awful copyright-free (ie: old and crap) midi songs in Wii music? A lot of the songs in Wii music are lullabies and kid's tunes aren't they? Rock on!
2.65 million copies sold .. .. ..
Wii games - SMG, Zelda TP, Mario Kart, SSBB, Wii Sports, Wii Play, Endless Ocean, Blue World, Wii Fit, Super Monkeyball, Rogue Trooper, Shaun White, NMH, NMH2, GH: WT, Aerosmith, Zack&Wiki, Okami, RE4, Force Unleashed, Clone Wars, Scarface, PES, Tenchu, Trauma Centre NB, Madworld, Rune Factory, Wii Sports Resort, Metroid Prime Trilogy, Muramasa, COD Reflex, Obscure, Silent Hill, Rabbids Go Home, NSMB, Bully, Tatsunoko vs Capcom, Red Steel 2, Monster Hunter Tri