FROM CARD: "A GUITAR OF WOOD, WITH BODY COVERED ON BOTH SIDES WITH THE SKIN OF THE "TAN"-A SNAKE OF THE BOA FAMILY. IT HAS THREE STRINGS. A FAVORITE INSTRUMENT OF THE CHINESE, IT IS A NOTEWORTHY FACT THAT THE SEMI-TONES OF THE DIATONIC SCALE ARE GENERALLY AVOIDED BY THE CHINESE, WHO SEEM TO HAVE A PREDILECTION FOR THAT SERIES OF INTERVALS WHICH MAY BE CALLED THE PENTATONIC SCALE, BECUASE IT CONTAINS ONLY FIVE DIFFERENT INTERVALS IN AN OCTAVE."