This is a good old-fashioned type of fantasie so beloved of 19th century flute player/composers - a theme followed by variations of increasing difficulty. The obvious difference here is the oriental influence, as the initial melody is based on a traditional Chinese folk song, and the use of fluttertonguing at the end to give a more contemporary twist. Otherwise it is as you might expect with even a minor mode interlude to add more colour. It also has a beautiful cover. Expensive though.