@coralkong - simple for us, but not so for the many audiophiles who may have just started out with perhaps less developed listening ability - I was one once, you see. As with trained photographers, who observe and see with great skill, learning how to listen is no different - except that it is compounded by so many more variables and nuance. While it takes just over 26 frames per second to see moving picture, the ear operates at a level in the tens of that, complicating our ability to listen with accuracy even further.
So yes, while it appears simple in conclusion, it definitely isn’t when there’s an entire world to parse through in the realm of the time domain that is music ; )
In friendship - kevin.