Excellent news Jimtzu. Keep us posted on how it all works out for you. Midi Guitar is a good tool to "jot down" ideas, to write some midi, and then you can go back and edit, adjust and get it in final form. It is pretty easy once you get it working.
To add signature info to your posts do the following:
1. go to "User Control Panel" at the top right of the page
2 choose "Edit Profile"
3. then choose "Signature and Comments"
4. add what you want as your signature and your comments
5. make sure you check the box to "always add signature to post"