中文在下面. Press the space bar to mark the notes to play, press the enter key to draw and play music, the lower left-hand corner slider control playing speed, the lower right-hand corner slider to choose instruments, please point out ~ ~ ! 按空格键标记要演奏的音符，，按回车键绘制并演奏乐谱 左下角滑杆控制演奏速度，右下角滑杆选择乐器，有不足请指出~~~！
Please press the space bar twice before starting! Use the mouse to move the location of the note point!Suggest full screen! 开始前请按空格键两次! 用鼠标移动音符点的位置！建议全屏！ 開始時請先按兩下空格鍵！用鼠標來移動音符點的位置！
