I have perfect pitch so pitch is quarter tone from western A440. So no point in trying to tune it, accept that it is in tune with itself. That said, it makes a lovely sound. The booklet of tunes must be Eastern/oriental in origin as they don't do it for me except Happy Birthday. I have cut out some stave notes and stuck them on it so I can play by ear. Goes from a low G to G above middle C. White notes only. You can lose yourself in it just letting it sound...