OK, scratch my previous doubt, I found this article
http://weblogs.variety.com/the_cut_scene/2008/10/wii-musics-14-l.html
Nintendo has yet to announce the full song list for Wii Music, even though it comes out next week, but I just got my copy and, conveniently, there's a list of credits in the instructions for all 14 of the the licensed songs. Not exactly competition for the track lists in "Rock Band 2" or "Guitar Hero: World Tour," but it's not meant to be.
The company previously said there are around 50 songs in "Wii Music," so we can assume all the rest are either public domain tunes or Nintendo's own theme songs. Unsurprisingly for a game that's meant to have such broad appeal, the licensed tracks are all really well known songs that have been around for a while and everyone can enjoy, if not exactly love. "Jingle Bell Rock" is about as edgy as it gets. And of course since there's no singing in "Wii Music," they're are well known melodies that you can recognize without the lyrics.
Interestingly, since the point of "Wii Music" is "playing" the song yourself, there's no issue with master recordings. So the instruction book only credits the composers and publishing companies, not the recording artists.
Take a look and see what you think:
"Chariots of Fire" theme song by Vangelis
"Daydream Believer" by John Stewart (made famous by The Monkees)
"Every Breath You Take" by Sting
"I'll be There," originally performed by The Jackson 5
"I've Never Been to Me," the classic Motown hit by Charlene
"Material Girl," which was made famous by a nice young lady named Madonna
"Please Mr. Postman," the debut single from the Marvellettes from way back in the early '60s
"September," from Earth, Wind and Fire
"Suriyaki," a Japanese song popular in the '60s performed by Kyu Sakamoto (OK, I've never heard of that one)
"The Loco-Motion," another 60s pop song that tortured young adults my age when we were kids
John Lennon's "Woman"
"Wake Me Up Before You Go-Go" by the illustrious George Michael
"Jingle Bell Rock." We all know this one.
"Do-Re-Mi" by Rogers and Hammerstein from "The Sound of Music." (No, not the last song that Kurt Cobain wrote.)
So only instrumental tracks. With the money Wii Music is gonna make, they could have easily put the master tracks
