Dear developers.
I admire your product. To create something more universal is impossible.
But to me, as a big fan of music, it seems that it is necessary to add an equalizer to the playback path. And it should be exactly a parametric equalizer for 4 - 5 bands with the ability to adjust the level of loudness.
This can allow you to adjust the frequency response of music in the room and even more please us, your fans.
Thanks you