There is often discussion in the forum regarding mixing frequencies, fitting sounds in their own "space," and more importantly–how to go about accomplishing these goals. I think producers, both new and experienced, will find the tutorial here to be a great reference. Though the author refers to a lot of tools in Logic, they're coming production tools most likely found in the majority of DAWs (or 3rd Party Plugs) and can be applied across the board. Big ups to my production partner-in-crime msmith222 for coming across this article. Cheers.