Ozone has an analysis section in one of their apps/ plug-ins. Sorry, cant link but you/ the app listen to a section of music and the software sets itself up to recreate that eq. What you seem to be actually describing, though, is listening to a section of music and re-creating a single instrument tone within that(?). Them's called your ears, or some software can do a poor rendition of it. But every note change/ background change would be confusing. Having said that, some software has come close, but i bet the 3 letter guys (and the ntsb)have access to the best equipment (to mainly isolate voices).