Trying out the new /tick command on the latest snapshot. I used /tick rate 50.1 by the way if anyone wondering. This new update is game changing especially for note block artists. You don't have to use mods now like tickratechanger.
Time spent: around 30 minutes (I made this first in ONBS from scratch and used it as a reference to build it in Minecraft.
This is raw audio footage from within the game. No audio editing used.