I have a pretty famous drummer friend who Im trying to sell on spectralayers. When he gets called on to perform he has to listen to tracks of songs and mark down the drum parts for different bands hes going to play with and I showed him spectralayers, but before I give him a good example to listen to, I want to clean up a good drum track hes on from a performance hes done but the phasing from the cymbals and other artifacts are pretty bad after soloing the drum stems. Any suggestions on how to clean up a dirty stem?