During the emotional moment when Ahsoka Tano leaves the Jedi order at the end of season 5 of Star Wars: The Clone Wars, a variety of musical themes play, one of which is her theme, and it plays on an instrument I can't identify. It's at about 1:50 of this video. There are strings in the background and some kind of rattle thing, but the instrument playing the main theme that sounds like a cross between a cello and an oboe is what I'm asking about. Does anyone know what instrument this is?
I'd argue it's a bass shakuhachi (a Japanese flute).
Kiner says that the theme for Ahsoka was written for a shakuhachi:
That was the first theme I wrote. And I remember writing for that theme and I used Japanese flute called a shakuhachi just trying to feel her femininity but her strength, there's this light and there's a Darkness to her and there's both of that in her theme you know?
This video demonstrating a bass version of the instrument sounds very similar to the piece in OP's question: