Lonesome [Original Song, Link in Description]

So, I started to make a song called "Lonesome" with Gumi English, and this is the cover for it.QuQ
I don't have any instrumentals with it yet, and I've only gotten like 20 bars, but I'm pleased so farQuQ

EDIT: Link to song:soundcloud.com/gumihaku/loneso…

Does anyone no of a way that I could add piano to the WAV file. All I need is a way to make my own thing with a virtual piano, and then load it into Vocaloid 3 to play along side Gumi.

Or, is anyone able to create a file of piano music and would like to volunteer? If so, I'd create some sheet music of what I want and send it to you over stash. It would be best if the piano music is a WAV file.

Gumi:

MMD 7.39 and Paint Tool SAI

And just for fun, I'll end this description with some Sasha Braus.