(Suddenly comes out as an idea XD)

You were a songwriter, but never good with instruments sadly. You still wanted to get the song to start good, so one day, a friend of yours gave you a package. When you open it, it was Some console type drive that you would plug in or something like that. When you test it out, you were greeted by two hedgehogs. A hyperactive female and a seemingly responsible male.

"Nee, Sonikkun! We're finally activated!"

"Hai! Can't wait to start singing!"