You should give it another go but work out a lead line that you can alternate between piano and guitar. As it stands now it sounds like you're fishing for one but not really catching it.
cheers
Paul
For the first part, the piano is just playing a supporting role, comping in the background, there.
But, for the second part ("Jaune") you're right, we still don't have a lead part; trying to work that out with the piano player. But you can hear me giving him prompts as to how to flesh out some of those ideas and build them up. Very broad, vague, open-ended prompts, but prompts nonetheless.
And, as to the tuning: I think that the guitar is just so badly out of tune that it makes the piano sound that way -- it's an electronic keyboard with a very good piano sound. So, I would assume that it's in tune.
Thanks for checking it out.