UPDATED recommended system requirements with Scratch 3.0: * Turbowarp: https://turbowarp.org/86118192?fps=60 * CPU: AMD "Zen 3" (Ryzen 5 5600X or higher), or Intel "Rocket Lake" (i5-11600K or higher), or Apple M1 or newer * Chromium-based browser or Safari Original notes: Yet another one of my creations completely destroys the Scratch player. >:-D Since Halloween is over now, I decided that a project like this would be great to get everyone in the "holiday spirit." What's better than an impossible-to-play variation on Jingle Bells? IF THE PROJECT IS NOT PLAYING SOME SOUNDS, CLEAR YOUR CACHE AND RELOAD! To clear your browser cache: https://kb.iu.edu/d/ahic Using Firefox also helps with the cache bug. Warning: this project requires a powerful computer to run reasonably fast, and even so will lag a lot. You have been warned! Technical notes: Black MIDIs are MIDI compositions that are impossible to play on a real instrument, and sometimes impossible to play on a computer! They can contain thousands, hundreds of thousands, millions, or even tens of millions of notes! I had to rewrite my MIDI conversion tool in C++ due to the sheer size of this MIDI file. The results, I have to say, are fantastic(ally Scratch crashing)! I used portions of my Enhanced MIDI Sounds project to play the music in this project, both to work around a bug (https://github.com/LLK/scratch-flash/issues/921), to reduce lag, and to make it sound better. You can find it here: https://scratch.mit.edu/projects/76759248/ I also had to make modifications to the way I store and read the notes inside the Scratch project, as using lists (which are stored in a really stupid way) would cause the project JSON file to exceed the maximum size the Scratch servers would accept. Oh, and the notes rendering system has a new "throttle" on it to make sure the drawing of the notes does not commandeer the whole project. To play this music outside of Scratch without lagging, you need to have a MIDI synthesizer that can stand up to this kind of abuse. If you are using Windows, you can use BASSMIDI Tester (http://www.un4seen.com/download.php?bassmidi24). If you are using Mac or Linux, you can run BASSMIDI Tester under Wine. Download the MIDI file here: https://cloud.asun.co/index.php/s/l7AiWl2zoPWq2By You will also need a soundfont. FluidR3 is pretty nice: https://musescore.org/en/handbook/soundfont