Peer Lawther writes, "you kindly wrote about the BERTI robot (Another Breakthrough in Rock, Paper, Scissors) a few months ago; many thanks for doing this. We have now uploaded two follow up robotics videos, this time based on the work of Professor Eduardo Miranda at the Interdisplinary Centre for Computer Music Research at Plymouth (UK) university and the Science Museum". The first video, seen above, shows robots singing "Happy Birthday" to the Science Museum. The museum is 100 years old. After the break is the second video, and possible the more interesting one. It's shows the three autonomous, intelligent robots learning to sing through a process in which they evolve their own unique musical languages.