Something that's been bugging me for a while is how the authoring groups work. I've been thinking about contacting quite a few bands, that are very likely to be okay with RBN, however with the suggested etiquette to contact bands, it just sends them to the website with the directions of going through the whole process. Now on a scale on how interested these people/bands are with Rock Band, I'm positive it's not on the extreme level, and going through the hassle of authoring the songs completely, getting an XNA membership is something they really don't have the time/patience for.
So what I'm confused about is how authoring groups come into play with bands. Do they contact all the bands themselves? Do they only subject to doing songs of their choosing? How would I refer an artist to an authoring group if they were okay with the artist? Would they have to contact the artist? And if they have to go through the full process of getting a membership, uploading midi files, charting songs, I'm not going bother contacting them.