Something to consider...
When you hear sounds, music, birds, etc. in the real world, it is typically much further from you than listening to your speakers.
Sound attenuates with distance, and there are two types of attenuation. There is the typical "spreading loss" (e.g., 6 dB per doubling of the distance for a point source), but their is also "atmospheric attenuation" due to the energy being absorbed by the ambient atmosphere. In this case, the higher the frequency, the faster it attenuates.
So listening to music in your living room at 10 feet away from your speakers, or hanging a microphone in front of an amplifier's speaker, is not the same as sitting 40 feet away where you would experience a different frequency balance, not so heavy on the highs, unless the recording was made 40 feet away.