Qiang: Onomatopoeia, which describes the sound made by knocking on a metal object.
Ji Ling: Onomatopoeic words describe the impact of jade.
Sonorous: Onomatopoeia, which describes a loud voice.
You see, Bai Juyi's description of "Like a plate of jade filled with pearls and pearls ..." in Pipa Travel has been used for reference by many authors. Poetry itself is also very charming, which is that different people have different opinions: it depends on personal understanding.