From some evidence, they used pi chawa in Krabuan Phayuhayattra (กระบวนพยุหยาตรา, military march) in the pre-Ayutthaya period.
According to historical records, it appears that they utilized a particular type of drumbeat, known as pi chawa, in the ancient military procession of Krabuan Phayuhayattra during the pre-Ayutthaya period.