How many instrument players were needed do form the pinipeat?

A pipa ensemble, or "pinipeat," typically requires a minimum of five instruments to create a full sound, including the pipa (a traditional Chinese lute), along with other instruments like the erhu, guzheng, dizi, and yangqin. However, the exact number can vary depending on the specific arrangement and performance context. Some ensembles might include additional players for a richer texture.