Why did Wulan Tuoya's song change to Wulanya?

Wulan Tuoya's contract with his former record company expired, and he didn't renew it, losing the right to sing ten songs such as Riding a Horse. Later, she released dozens of songs, such as "Red Sarilang", "qingqing grasslands" and "Love from the Grassland", which were adapted into square dances by the masses and widely circulated. Her unique and sweet voice has changed the rough style of Inner Mongolia, and it is the real sound of nature on the grassland. Although Ulan tuya continued to sing "Harness" instead of "Wulan Tuoya", the timbre and melody were much worse than those of Wulan Tuoya, and the style also changed greatly. In my opinion, riding on a horse will never catch fire without Wulan Tuoya's second creation of the song "Riding on a Horse".