http://psycle.wikia.com/wiki/Quick_Tutorial
This is the tutorial that I largely followed and teached me the basics. It's not too different from using orgmaker once you get used to it really.
And your second question I don't understand.
which tune did you change the key of to make it sound perfect?
That part. Clarify please.
[Edit]: Also, "kaze no toride" (wind fortress) was its japanese name, but "gamimimi..." was its org's name.
The problem is the japanese name is in hiragana, so it's just phonetic. It can mean many things depending on how you kanji-ize it (like when it's written as "風邪の鳥で" it means "bird flu"). Wind fortress is just more or less the translation that makes the most sense.
I don't even want to translate gamimimi, but when I did I got things like "Paper Hearing", "Ear Hair", "God Heard" or "Mimi god". I have no clue for that one, but I like the last one the best.