Create a futuristic sci-fi soundtrack with electronic soundscapes and pulsating synth rhythms.The use of low strings and the sound of the flute as the opening, showing the tragic emotion of parting. The music unfolds in a slow rhythm, and the solo of Xiao is like telling the contradictions and unwillingness of Jing Ke's heart. The faint drumming in the background builds up, symbolizing the call of duty. 0-5 seconds: The flute opens, the bass strings are sobbing, and gradually enter the situation where the dancers enter. 5-10 seconds: Drums tap, accompanied by strings, the rhythm is slightly accelerated, with Jing Ke taking firm steps. 10-15 seconds: the string tone rises, and the strumming sound with a sense of tension is added to match the dancer's sword-step sprint and enhance the sense of mission. 15-20 seconds: background drums increase, the sound becomes high, showing the determination when starting, and the movement enters the transition of rotation and sliding step.