The mark of a truly great mixing studio is their ability to become musical chameleons. No matter what genre you want—country, rock, pop, rap—they can do it for you. The skill needed to adjust to genres accordingly is critical, and is very telling of the studio’s overall skill. An inability to refine tracks in different genres is an indicator of greater inadequacies, because every single artist is going to have their own unique needs and objectives with a track, and if a mixing studio can’t handle two different genres, then that may be indicative of the fact that they will not be able to handle the more nuanced aspects of your desired final track.
There are countless tricks professional audio mixing teams use—both consciously and subconsciously—to switch from genre to the next. Some of these include:
Different instrumentation, different techniques. Professional mixing studios know that with different genres come different instrumentation, tracks, and consequently techniques. Quality studios have a large enough of a tool kit so that it does not matter whether or not you want to go with high peaks in the drums in one song, to no drums at all in the next.
Keep songs of a similar genre on hand for references. Professional audio engineers are humans too who often need a reference point while they’re mixing. It is easy to get lose track of the goal in the middle of mixing; playing a song of the same genre helps bring inspiration, as well as keeps engineers open to different sounds and trends that they could apply to the track that they are mixing.
Ignore readings; trust your ears. When a lot of audio engineers are starting out, they are told that certain Hz or dBRMS are right for this genre, and stick to those guidelines no matter what. Although all of these informal rules are great starting points for a beginner, mixing in reality is a lot more complex than that. Ultimately, pros will keep an eye on their readings but ultimately keep what they hear King.
Don’t believe me? Listen to some of the samples MixProStudios.com has done in different genres.