I recently watched "The Wind Rises", from Studio Ghibli. Many of its film scores are written by Joe Hisaishi. This was inspired by him. In fact, I'm somewhat guilty of copying; one of the chord progressions is the same as that in a "Castle In the Sky" score.
This track is a theme played four times with instrumental variations including string and rock guitar emulations.
@Potasmic
I first used a pluck-ish synth to act as a piano so that I could write the notes. Then I took the pattern and Machinistified it. Simply move the notes so that the lowest is on C, then move all notes above that so that the lowest note from those is on C#, etc. Basically remove the spaces in between notes. Then I separate the pattern for each Machiniste. For additional changes, I find new notes by listening as I play notes on the Machiniste.