Why is the band so loud?

What does the voice or instrument sound like naturally? What if we were to try and reproduce that rather than doctor something with more technology? I love tinkering with different microphones, eq settings, compression, effects, room acoustic, ext. But if the sound of a drum reverberating sounds like a tropical bird, I may look to the drum 1st. Is that piano in tune? Is the guitar amp ready to blow a tube and making strange whining noises? Y ...