I am currently recording a project with Logic Express Version 8. The problem that I am having is with mastering relatively equal levels across a set of tracks that I want to ultimately present together. I don't expect the levels of each song to be exactly the same, but in their current state, they are too far apart. Now, there are varying instrumentations for the different tracks, which is part of the problem. For example, I want to put a solo guitar piece alongside some guitar-bass-drum arrangements. I get the level of the solo piece as hot as I can get it without clipping, but of course it doesn't have the same impact volume-wise as the multiple instrument tracks. If I pull the level of all the "hottest" tracks down to match the quieter ones, the level of the disk as a whole will be uncustomarily low. There must be some mastering tricks... perhaps some tools inside Logic that I am not aware of, or outside for that matter. It almost seems like I need software that could compare the relative levels of multiple tracks. Does such a thing exist?