I have two copies of the same song, but technically they are different (because the waveforms are not a 100% match). One copy is a commercial release. It is fully mastered and everything. The other copy is an early-mix of literally the same song (as opposed to a retake or live version), with no mastering and only slight differences (e.g., some vocal adlibs have been removed). It was obtained from an early reference CD before being outsourced for mastering. The commercial release sounds way better due to the mastering, but I prefer the nuances of the alternate copy. Is there a tool that can "steal" or "copy" the EQ spectrogram from the commercial copy and apply it to the alternate, unmastered copy? Has anyone considered this type of trickery before? Thanks.