00:48:170 (1) - It may be better to use two objects to match the vocal
Rather keep for visual emphasis. Your idea is not bad tho but my ear is kinda crappy and only hear the vocal into one slider lol
01:25:202 (1,2,3,4,5,6) - Meaningless circles. At least they mean nothing to me.
They're actually not. I follow the background sound so it should be fine. Turn the volume up and you can hear the background sound is actually start immediately instead of people who just only follow the ending three drums sound