 So if we have these two chords B flat major and D major played four times as you can hear can get pretty boring. So let's try and make it a bit more harmonically interesting with five strategies. First off let's form the relative minors of each of these chords that will be B flat major it's relative minor is G minor that's upper major sixth D major it's relative minor is B minor. You can also do a plagal movement which is up the fourth can remember that with the circle of fifths and those chords can either be major or even minor D major to a G minor sounds pretty cool.