网格布局Autoharp带可编程和弦
**** Play music on this fun Autoharp! ****
* Press a Chord key on left hand side and strum strings on right
* Hold Chord button three seconds to reprogram chord button
* Hold strings 10 seconds to choose new sample .mp3 or .wav file (sample should be tuned to C)
* Chords are "sticky" so you don't have to hold a chord to continue to strum it