Have to admit, only discovered this app last week;
This looks like a very professional and polished application for writing music, yet free and can be run from a USB flash drive.
A friend of mine needed something like this for her 15 year old son who is studying piano.
Certainly from the layout and features of this app, it looks superb.
We have added it this week. We hope it will encourage more people to write Christian worship music especially in areas where the gospel is hard to reach.
You can see the home page for this application here:-