Suggestion:
Purchasing additional songs on GH5 would be expensive relatively.
I just recommend you to join one of those download sites for wii games and resources, incl. music, packs especially the packages for songs of GH5, American idol etc.
The sites are all paid-one-time for life, then using torrent, ftp or emule way to download the resources you needed. Games, music, packs like what you are need now.
I found a review site for your reference:
http://www.great-monitor.com/reviews/wii.htm
{ 1 comment… read it below or add one }
Make sure your Wii is connected to the internet. Once it is, you should be able to connect to the Wii-net and from there download/purchase tracks.
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