A symphony playing method using an electronic device includes calculating a distance value between a first GPS device of a first detecting device and a distal terminal of a baton. An angle between a first straight line and a second straight line is calculated. A capturing device is controlled to capture images of hand gestures of a user. Once a music instrument is determined to be currently pointed to by the distal terminal of the baton, according to the first distance value and the calculated angle, and a beat is determined according to the captured images, notes on the symphony is played using a tone of the determined music instrument according to the determined beat.
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