There is a music software that you can download to your PC for your KIN device. I have posted a link to the website in which you can download the software.
Keep in mind that it requires Windows SP Service Pack 3 or higher to install and run on a PC. As an added value you can even use the Zune software with your Xbox 360 and Xbox Kinect. Here's a link to the wonderful ways in which you can share media throughout the entire house!