Originally Posted by: Fret spider
now want i am a bit unsure about is why choose Aminor as the stable chord to resolve to, for instance why not resolve to any other minor chord.eg bminor.

Well, it depends on what key you're in to start with; the context is important. For example, if you just start out by playing an E7 chord on its own, then it could resolve in a number of different ways, the most common being to either some form of A major chord or some form of A minor chord. That's because of the reasons already stated above, that a V-I change has the most satisfying resolution.

In the previous example of the chord progression that went Am-->G-->F-->E7, the key is Am, so you wouldn't exactly have a Bm chord in that key to resolve to. The B chord in Am is a Bmb5, which is probably the last chord you'd wanna try to resolve to! :)