I bet there's an option on disabling the drums in Nightcore, it's kinda annoying when I play, it sometimes ruins the whole song type in some beatmaps imo. Well, it'll be good if it's either added in the pop-up menu (The one where you disable the storyboard or dim the backround, even disabling the BGVid), or the Options menu (The one in the main menu). I don't think this is a duplicate or anything. 
It's just that for some players that don't like drums, there must be a desc. "Others don't like this option, a very few like this".