Okay, you're not understanding what I'm trying to say. So I will explain this again.
#1) I am not saying I know or care about which song it is. It could be multiple songs in several genres if it makes u happy.
#2) I also know that there are many factors in how headphones sound. If headphones A is the one you are trying to get, and you are using headphone B which cannot produce the same frequencies as headphones A, then ofcourse headphone B cannot physically simulate the same frequencies as headphone A.
The point you are missing is that I am using this as a way of comparison. If I keep all the audio output equipment and media constant, and the only thing I am changing is the EQ of the same song which adjusts the volume levels of different frequencies, then I can compare the simulated sound signatures of many headphones.
This does not mean that I am tying to realistically simulate headphone A on headphone B, rather I am trying compare simulated sound signatures of different headphones. If I could simulate sound headphone A off of headphone B, I would not need to buy headphone A period. I am not trying to compare headphone A to headphone B. I am trying to compare headphone A, C, D, etc using headphone B. And like I said, rough estimate of differences in sound signature during comparison.
Again this is for comparison sake using the same everything except for simulated sound signature (emphasis/de-emphasis) using EQ.
Hopefully you understand this time.