here's a audio file.
if it sounds weird, then use this midi file, put it into online sequencer, and click invert from the 3 dots, you'll might here something familiar. (also you have to download both files)
(mp3) https://drive.google.com/file/d/17ztCjL3_VqkmkzEewYQz7TdtjuXjxsjh/view
(midi) https://drive.google.com/file/d/1iqCzcLYXIpH875NDzjse4671JHgm4GcF/view?usp=drive...