So the best way to explain to "Two-Fives" to you is really is take a look at the piano first, so if this is our major scale, right, one, two, three, four, five, six, seven. Theoretically you can make the chord out of either one of those notes. Here is one chord, two chord, three chord, four chord, five chord, six chord and the seven chord. What we are concentrating mainly on today is the two chord and the five chord and you hear how that wants to resolve to the one right. Two minor, five, seven, one major. That is why it is called the "Two-five", because it has the strong resolution going to the one. Two minor, five, seven to one. So what we are going to do is go through and learn our "two-fives" in every key and we are going to learn the different aspects of each note. What gives that movement, if you look at the piano one more time, if you take three and seven out of each note, right, if we make this one, one, two, three, four, five, six, seven. We have three and seven right, and then they switch, you have seven and three here for "G" right, one, two, three and seven is right there. Then, when you go to "C" it comes here, so you have this inter-movement here and these are called "shell-voicings". So, you got two minor, five, seven to one. That is what gives it its strong harmonic pull because it has this tension, you can hear the movement and the importance of the third and the seventh of each one of those chords as it moves through. We will go and we will learn all of this theory and it is the same theory, twelve times in a row, for twelve different keys.