I already addressed this question on our community site here, but I wanted to add some more details.
Windows 8 is based on the same kernel as Windows 7, only a much smaller, improved version of it that can easily run on mobile devices as well e.g. ARM CPU’s
Anyway, this means that most programs that run well on Windows 7 are also working on Windows 8 e.g. iTunes works very well:
After installing iTunes
It’s up and running
If you are using services like Spotify they should also work too, but it’s untested so you would have to give it a try yourself. If you do, please post a comment mentioning what works and what not in the comments for others visitors who read this, thanks!