I am trying to create a beatmap using an array of a beat object that contain a boolean and a number that will be loaded. I have a Song that will have 420 beats over 7 locations. If a boolean takes 1 bit then an array of size [7][420] would be 2940 bits and a byte which takes up 8 bits then an array of size[7][420] would be 23,520 bits. In total the array should be 3.251 KB.

First question is, am I missing anything in my calculations?

Second question is if this is a feasible thing to load at the start of a level and how would I go about estimating the speed required to load it. ( the array would only be read by column when loaded)