SeeMusic is a fantastic program and has reached the top professional level in a short time when compared to the videos of the most famous youtubers out there. The main aspect that should still be improved is the one related to the graphic aspect of the NOTES scrolling across the screen. A couple of basic shapes are currently offered but Patrik Pietschmann and Kassia's latest videos demonstrate that notes can be embellished in various ways. For example, there should be the fundamental option of viewing the notes also in 3D, possibly also choosing the style and height of the border and the shadow. And the inside of the notes might also contain a couple of texture variations (I've added a couple of examples below). If the appearance of the notes improves as the rest of the program already has... BINGO!!
if you want a scrolling mp4 note texture just get a full screen mp4 video on a loop of what ever you want resize it to the full octave range of your piece and the background texture will scroll with the notes on its own. it takes some practice but ive got amazing textures now with 1/10th of the render time of after effects :)