Humanoid robots are mostly tested in assistive manual tasks, while their potential for creative, expressive roles like music or performance remains largely unexplored.
“Researchers from SUPSI, IDSIA, and Politecnico di Milano developed Robot Drummer, a reinforcement learning–powered humanoid that plays drums with precision, expression, and human-like movements.“
From Coffee Conversation to Creative Robotics Challenge
“Lead author Asad Ali Shahid said Robot Drummer originated from a coffee chat about how humanoid robots rarely engage in creative or expressive tasks.” That sparked a question: what if a humanoid robot could take on a creative role, like making music? Drumming felt like the perfect challenge—it’s rhythmic, physical, and demands quick coordination of multiple limbs.
Shahid’s team developed Robot Drummer, a machine learning system enabling a humanoid to play full songs with human-like rhythm, tested successfully on Unitree’s G1 robot.
“The core concept is to model each song as a sequence of precisely timed contact events—what we call a rhythmic contact chain,” Shahid explained.
These contact points specify which drums to hit and at what moments. Using this guidance, the robot practices in a simulated environment, refining its technique over time. It develops human-like drumming skills, such as switching sticks, crossing arms, and optimizing movements to the rhythm.
High-Precision Drumming Across Multiple Music Genres
The team tested the system on a simulated Unitree G1, performing songs from jazz to rock, including In the End, Take Five, and Livin’ on a Prayer.Results showed the robot could master complex rhythms and play with over 90% rhythmic precision in many cases.
“Shahid noted the robot learned to anticipate strikes, perform cross-arm hits, and switch sticks mid-performance.” These emerged purely from optimizing for rhythmic rewards during training. Robot Drummer could one day perform with live bands and teach precise timing beyond music.
Potential to Spark Innovation in Robotic Performance Arts
The study may inspire new ML systems for humanoid robots to play instruments or join performance arts. Such technology could transform the entertainment industry and showcase robotics progress at real-world events.
“Our next goal is to transition Robot Drummer from simulation to physical hardware,” Shahid added. “We aim to teach it to improvise and adapt in real time to musical cues, responding like a human drummer.“
Read the original article on: Techxplore
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