Increasing subjective dynamic range on analog recording still further

This came while playing with a malfunctioning Pioneer cassette deck.


The deck under modulates one track of the cassette tape.


So, would it be possible to use on any tape medium with 2 tracks both of them as one channel. Using at digitisation or whatever, track one most of the time. Then at loud parts or peaks where it would be distorted, taking the information from the under modulated track where tape is not modulated to a point of objectionable distortion. Of course the so listenable distortion of analog tape is desired and can be taken from the main tape track.


Would this idea work on digital which can instantly go to objectionable distortion mode?


Disadvantage is needing double memory. But then the information could be used to make a combination track.