Miku Sings with Grandpa IBM

For those who would like context, Hatsune Miku is a vocaloid, so her voice is computer generated and controlled by a chart. The older voice belongs to the ibm 7094, which is the "first computer to ever sing" since it was the first computer generated voice that actually managed to sing. This, of course, gave rise to a lot of technology that could also sing, including none other than vocaloids, so the vocaloid fandom considers the ibm 7094 to be Miku's grandpa. They're both singing "Daisy Bell" which is the song the ibm 7094 sang. Ironically, the ibm 7094 wasn't even made to sing, but was capable of doing so.