I found something that really helped me with the EQ games today, and I thought I'd share.

I usually really struggle with these challenges, but today I listened to the audio, came up with some words to describe the EQ'd sound (e.g. 'too harsh' or 'too boxy') then I looked at this graphic to try and identify the problem area. As a result I cleared level 5, and when the game ended I still had 3 or 4 lives left. Dramatic improvement. Hopefully over time these ranges will sink in and I'll no longer need to look at the graphic. Hope this helps you , too.