An embodiment of the invention discloses a data processing method applied to an electronic device. The method comprises steps as follows: a graph interface is created; multiple keys are drawn on the graph interface and arranged in a planar spiral manner; musical sounds corresponding to multiple keys are determined respectively, a corresponding relation between each key and the corresponding musical sound is established, and pitches of the musical sounds corresponding to the multiple keys gradually increase or reduce in the preset rotation direction. On the basis of the data processing method disclosed by the embodiment, a novel interface can be generated for a music game application, and the multiple keys in the interface are arranged in the planar spiral manner, so that the keys are arranged more compactly, and more keys suitable for user touch control can be displayed in the interface in the same area; besides, the keys corresponding to the musical sounds in a certain range are arranged continuously in the interface, and user operation is facilitated. An embodiment of the invention further discloses a corresponding data processing device and the electronic device.