Haile uses its wooden arms to play a Native American powwow drum, facing a human drummer and striking the opposite side of the same drum. The robot detects the rhythm, loudness and pitch of the player's drum pattern and perfectly mimics their actions.
Haile then improvises by dividing, multiplying or skipping beats. "This creates variations of the user's rhythm while keeping the original feel," Weinberg says.

Wow.. it/she/he plays much better than me...