I uploaded 19000 songs to Google music. However about 3000 songs are incorrectly tagged. I've always used foobar 2000 to tag my music and all my music shows the correct info in foobar and on my iPod. So why is Google saying that hundreds of my albums are by unknown artist, etc.? I tried changing all my tag types to id3v2.4 using foobar and rewriting the tags to the files, but my problem persists. Please help, I'd love to use this service but as of right now it is unusable.