Google Music Soft Ware

Google Launched Music Beta Website, Invitation Only Test Version
Google Music lets you upload your personal music collection to listen anywhere, keep everything in sync, and forget the hassle of cables and files.
Now "vhanla" @ DA has created a cool Google Music Desktop player for Windows 7 which lets you use Google Music service as a desktop application. It allows you to access and control it with multimedia keyboard, taskbar buttons and as a widget.

Features List:

• Uses Webkit Engine
• Supports Multimedia Keys (Play, Pause, Stop, Previous and Next)
• Windows 7 Taskbar support (Buttons for: Play, Pause, Previous and Next)
• MiniPlayer
• Metro UI with Aero Snap support

Currently its under development so you might get bugs while using this app.
You can download it using following link:
Download Google Music Desktop Player for Windows 7