Turn voices down, cut the low end on the verse
so the arpeggio can be heard more clearly.
Cut lows out completely for the chorus.
To mix vocals, turn down the music until you can
barely hear it. You should still be able to hear the
vocals clearly as well as everything that plays
under it. If you can only hear one, it should be
rebalanced.
Turn down hi-hat. It sounds loud because it's a
higher pitch.