A revamped idea for the practice mode

[Auxierrgd]

I have a new idea on how we can change the practice mode.
Instead of it being just a toggle button with literally no purpose, how about a speed change button? like if a part is really fast and you wanna memorize it you can pause and then hold shift/control and press the left or right arrow keys to adjust the speed (2x, 1.75, 1.5, 1.25, 1, .75.5 and .25 speed! This will make learning difficult parts much easier and more fun, and for those who want a challenge, they can up the speed all the way to 2x! take this into consideration and anyone else seeing this post make this spread to other posts and pages, we NEED this feature!