I just love Rikku's theme so I tried my luck at writing lyrics. You can find the midi here: http://www.ffmusiconline.com.

Rikku's Theme
Family

I think this is the last chance
I have to say
This is my life and I guess I made it this way
I believe it.

There is no way we'll be torn apart.
No matter what you'll be in my heart.

Through thick and thin
I see us there
What fiends we face
I do not care

I'll be strong
Just as long as I have a friend to hold on to, yeah

I will be brave if there's reason to.
Put back my fears with each battle new.

Through ev'ry fight
There's victory.
We are a team
And that's the key.

To live on
We will forgive and forget each other's mistakes, yeah.

So if the lightning strikes me to the ground
I will get up and refuse to be knocked down.

As long as my friends are always around
I feel like we are not just friends
We are family