解决music studio/ORG2020无法全键盘演奏的问题

如果不想要自动伴奏检测功能，要全键盘演奏请关闭下面2个按钮：

 Chord Scan:
• Off: The Chord is not played
• Lower: Setting a chord using the clavier on the left side of the red line
• Full: Setting the chord using all the claviers
Chord Mute: Mute/Unmute Chord sound (Synchronized to the main rhythm).
Drum Mute: Mute/Unmute drum/percussion sound (Synchronized to the main rhythm).

默认是lower模式，c4音域检测和弦，想移动到c3音域检测自动伴奏和弦需要设置

 Octive Move：-1