Changes are listed in a comment the first sprite It sounds better on Forkphorus (even better than TurboWarp, because it calculates sounds differently): https://forkphorus.github.io/?fps=60&id=1381323797 If your computer is struggling to produce a sound at all, reduce the clone count. Increasing the doubling count or the downsampling makes it sound more clear, but the doubling causes lag and the downsampling filters out high pitches. Increasing the clone count also makes the sound better, but places load at whatever your browser uses to mix the sine waves Press "i" to import another music On Forkphorus, after the importing press "i" again and leave the input empty (for some reason, Forkphorus slows down without this) Credits: the currently imported music is Never Gonna Give You Up by Rick Astley @Chrome_Cat for the block timing info https://scratch.mit.edu/projects/1030987979/ @SpinningCube for the original version