Music data has a similar problem. As such, it’s impossible for any digital catalog owner, to know exactly what music they have in their database. Without knowing what music you have or what new music you’re adding — your recommendation, discovery, and curation will always suffer.
The most important thing to bear in mind is that when you’re working with a mix, you’re dealing with a multitude of complex and interconnected phase relationships. EQ that kick drum and you are changing its phase relationship to other sounds appearing in the mix. Hopefully it’s not audible (or at least still sounds good), but it is there.