From the article:
For Barnes, the device needed to be able to take cues from the human body. The lab designed a prosthesis that uses a technique called electromyography to pick up on electrical signals in the upper arm muscles. By tensing his biceps, Barnes controls a small motor that changes how tightly the prosthetic arm grips the drumstick and how quickly it moves, vital skills for a drummer.

The researchers then added another layer of complexity: a second, autonomous drumstick on the robot arm (see photo). This second stick, controlled via its own motor, uses a microphone and an accelerometer to sense the rhythm Barnes is playing, as well as music from any nearby musicians. An algorithm then produces a new beat with a complementary rhythm and melody, modelled on the music of jazz greats like John Coltrane and Thelonious Monk.

With this extra artificial intelligence, human and machine combine to make Barnes a kind of "superhuman drummer", Weinberg says.

Tags for this video have been changed from 'ella, fitzgerald, awesomeness, thelonious monk, 1961, oscar peterson' to 'Ella Fitzgerald, awesomeness, thelonious monk, 1961, oscar peterson' - edited by jonny

Nice use of Promotitude!

In reply to this comment by kulpims:
*promote

The Thelonious Monk Institute of Jazz, a nonprofit education organization, was founded in 1986 by the Monk family along with the late Maria Fisher, an opera singer and lifelong devotee of music. Its mission is to offer the world's most promising young musicians college level training by America's jazz masters and to present public school-based jazz education programs for young people around the world.

Here is the institutes's ensemble performing 'Thestrals' live at Tokyo Jazz. I reccomend checking out MLX's wonderful playlist Nothing But The Blues.