This article is part of the 50 Apps by Christmas series.
![image Graph of 50 app progress](http://dontcodetired.com/blog/image.axd?picture=Windows-Live-Writer/50-Apps-by-Christmas---SilverKeys/7BED2EEC/image.png)
I developed a Silverlight app a few years ago and I wanted to see how easy it would be to port to a Windows Store app. You can download free trial of SilverKeys for Windows 8.
The Original Silverlight App
Here’s a screenshot of the original Silverlight app:
![image Original Silverlight app screenshot](http://dontcodetired.com/blog/image.axd?picture=Windows-Live-Writer/50-Apps-by-Christmas---SilverKeys/1FA8E738/image.png)
The app helps amateur composers try out different scales and also helps them understand what common chord progressions are often used.
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