MusicManager screenshots

Software client that allows you to upload your music to Google Music Beta
Uploading Music
MusicManager 1.0 : Uploading Music

Alternative downloads

Music Collector
Catalog your CD, vinyl, tapes and other music media with this program.
CloudBerry Explorer for Google Storage PRO
Manages and moves files across your on-site and cloud storage.
CATraxx Importer
It can import data from a group of applications.