简编谱曲

<iframe allow="autoplay"
  src="https://your-domain/jianpu-player.html
       ?embed=1&song=twinkle&lang=en"></iframe>

const p = new JianpuPlayer("#box", { src: "…/jianpu-player.html" });
await p.load({ score: "1 3 5 | 1'--- |", bpm: 96, autoplay: true });
p.on("ended", () => console.log("done"));