The pen acts as a mic you sing into. When docked into the digital paper tablet, your vocal harmonies are automatically transcribed into a score. For the old schooler, you can write directly on the display. Great concept, wish it were in production.
That would also be kinda weird<<< no no no! Then they just say, "aww, here lemme sing it for you" and they pull out their guitar and it's likE YES <<< i imagine dating shawn mendes or niall horan would be like this