Originally Posted by: craigey0Its interesting that both these examples add in the minor of the fourth(IV) of the scale - also in close conjunction (immediately after) the 'in-key' IV chord. The reason I picked up on this was I was trying to understand part of Eagles Desparado which goes (something like): G G7 C Cm G Em7 A D7 ( I I(dom7) IV iv I vi(7) II V(dom7) ) - I understood the major second as it's the V of the V (D) which it resolves to. But I couldn't understand the Cm. But like the two examples given it is also the minor on the fourth and follows the major fourth. I wonder if there is anything particularly interesting about this out-of-key chord the minor fourth - as it gets used so much. I understand a bit about extra out-of-key major chords which can sometimes be because they are the V of the V etc but don't understand at all any reasons why minors might be used - except of course they sound good and you can put anything in if it appeals to you. Any thoughts?

If it sounds good... it is good.