remove frequencies from one track to another

[23fx23]

hi guys,
was a long time out but back to beloved usine can't wait to re-discover the news!

i dlike to build something to maximize output without cliping with a 'master A' and 'slave' B track.

the idea is for example if got two differents leads tracks playing different stuff but on whole spectrum range with over time ovelaping frequencies causing peaks, to get most power output keeping both track playing together but without clipping, via deciding that if master plays, the slave should adapt ideally via removing currently playing frequencies of master so there is no more overlap and unwanted peaks.
i could just go and try/patch some stuff, but im curious if some got ideas of potential ways to do this.
(ie simple sidechain, multiband sidechain, ftt analysis/process, partials tracking ect..)
ideally should work realtime.
any ideas?

[drakh]

just koncept how to do it
use some EQs to filter the bands connect envelope follower to its output and inverse it, and then send the inversed envelope follower to data bus. in the second rack create EQs with the same setup as in the first rack. connect data bus with envelope follower signal to gain of EQ.

[sephult]

So basically just like a Limiter but more frequency based?

[23fx23]

there are various ways to test, like drakh said, kind of multiband sidechain is one, gonna test various ways and reports.

im not really aware of FTT /partial tracking modules ability to be used in this case, wondered if some had the theory round this.
well just gonna try all the possible ways! thx guys