duplicate search by sound with care to finite differences (Such as clean vs 17 ) with visual compare of files. Also suggesting which is more audibly clean.

Acccurate acoustic fingerprinting (duplicity checking) but, with a side by side comparison on the soundwave for those who want to see where the specific variance is within the music. (So far no one that I know of has this.) Something that would be delicate enough (acoustic fingerprinting) to tell the difference between someone saying hell and cell for instance. Or, at least catching a 'clean' version vs a 17+ age rated version.

I have had multiple 'duplicates' chosen by many programs only to know in truth they aren't duplicates, but there's a minor variance as listed. I would love a side by side comparison of these files. Or, if I am seeking quality of one file vs another. Sound artifacts of someone say recording a bootleg show. Another person uping the bit rate and then sending it out again. It's no better than the 128 bit version but there's few ways to compare that.

Also the option to play the 'side by side' files in a left and right channel would be great so you could not only see the differences, but you could hear them side by side (In headphones) if you chose to. That would take this software to the level higher than any other software I currently know of. I have sought obviously ;)