User blog comment:GabiAkatsuki/SOMEBODY PLEASE HELP ME/@comment-32500188-20140219223201

Like Soop says, adjusting the Gain for each track will definitely help (in this case, lowering the vocal's gain slider). You also want to make sure to avoid any audio cliping and over-editing, as it will damage the audio quality, so be sure that your output volume levels being displayed at the top aren't fully light green. (It's fine for the dark green at points, but you don't want it constantly full the majority of the song.) :-)