Turn your speakers up a bit & enjoy. You can use Ctrl + M to switch to the Stage3D renderer, which looks nicer and seems to perform a little better. Press the Z key to show render time. An ! in the orange readout means it is running slower than the target rate (30ms per frame). Press the M key to toggle mute.
This is all pen-rendered. I've been following two music artists by the names of Au5 and Fractal for quite a long time - they just so happen to be my favorite artists. In recent years, both have greatly slowed the pace at which they release music. Fractal, in particular, last posted something over a year-and-a-half ago: a preview of an upcoming piece titled "Deos". After listening to the Deos preview many times, I felt the need to animate some of the mental visuals that the song gives me. If you like what you hear, take a look at the works of both these artists. I think their best pieces can be found in the 2013-2015 era. Au5: https://soundcloud.com/au5 Fractal: https://soundcloud.com/officialfractal Incidentally enough, it was Scratch itself that led me to find these two incredible artists. I owe my discovery to @ProdigyZeta7 , whose "3D Shape Runner 2" project has the collab piece "Subvert" by Au5 & Fractal playing in the background. 3D Shape Runner 2: https://scratch.mit.edu/projects/13726492/