Pepā or mohor singor pepā (buffalo horn pipe). The body consists of a bamboo tube with four fingerholes. It terminates in a buffalo horn bell, decorated with brass strips. Like all hornpipes, the instrument's sound it produced by a vibrating reed set into the top of the body of the instrument. Rectangular in shape, the reed's blade is cut out of a thin tube of giant grass still attached at one end, and it is enclosed by a bamboo wind cap that also serves as a mouthpiece. Made in Sonaribari, Majuli.
The pepa provides melodies in dance music for the Assamese Bihu (harvest) festival. It is often played in a crouching position. The musician's index and middle fingers stop the top two fingerholes, while the right index and middle fingers stop the holes at the lower end.