Apple Music library Bigger? Smaller? Or Equal too iTunes Store Library?

[iFanaddic]

I'm really exited about Music. Spotify lacks a lot of the music I listen to (mostly the local stuff) but the iTunes Store always has just want I'm looking for, local or international. I watched the keynote and I don't think Apple gave away any statistics about the content that will be available on Music? Has anyone seen or heard anything that might let us know what Music has in store for us?