I regret that I did not do proper audio mixing on some of my albums around the 2017-2019 era. Despite having good Yamaha monitors back then, I often lacked the knowledge and practice needed to carefully ensure that all elements in a track sounded balanced on speakers first, especially around the bass drum, middle rim, bass, hats. And the fact that all tracks in an album must have the same volume, like you’re listening and meet no very high or quiet tracks; all must be the same. Balance of volume must be prepared not only between elements of tracks but also between all tracks in an album.
I started checking mixing and mastering details very carefully on both speakers and headphones around the start of 2020. Despite all those not well-balanced albums always sounding good in headphones, I would advise everyone to check on monitor speakers first.
What sounds good in speakers sounds good in headphones, but what sounds good in headphones might sound bad in speakers. When mixing, start with speakers.
Same can be said about any other form acting whether art or form design.