I bought Synthesia and a decent keyboard a while back for this very reason. eg: https://www.youtube.com/watch?v=bxbNtOfM-n0 https://www.youtube.com/watch?v=bxb

I bought Synthesia and a decent keyboard a while back for this very reason. eg: https://www.youtube.com/watch?v=bxbNtOfM-n0 https://www.youtube.com/watch?v=bxbNtOfM-n0