So for years I've been wondering on how mapping actually works in osu mania because it seems like every object is placed randomly / everything feels like a badly converted map and I can't seem to understand any patterns or to what sound it's supposed to be mapped like I play other Mania like games (etterna and quaver) and there I have no problem playing at all cause every single object and pattern is timed to a sound that I can clearly hear for a rhythm but even after hundreds of maps I tried I haven't been able to find something that seems to be mapped to the song so what am I doing wrong? Is really everything just randomly placed? Do people use other MP3's while mapping and change them for the upload??? Like I really want to get into mania but as long as I don't have an answer to that question I won't be able to.