Qiang continues to move forward with the advancement of society. In the 1930s, the first generation of qiang was composed of two horses, three rows of tones, seven-tone scale arrangement, and twenty-one tones. The front length of the piano box was 81.8 cm, the back length was 99 cm, the width was 35.2 cm, and the middle height was 9 cm. . In the late 1950s, Asimu, an old man of...