I was just looking for help on isolating the bass line to a song in the best possible way. I use Anytune, a neat app for iOS, and raise the song by two octaves and also apply a preset 'isolate bass' EQ preset. However, I was wondering if anyone had any better tips about going about this task, such as placing a LPF/HPF on a certain frequency band or boosting/isolating a certain frequency range? I'm starting to try and figure out songs by ear, and my first is Arctic Monkeys-You And I. The mix is very dense though, with what I think is three guitars.