Dan Leonard: Hi! I'm Dan Leonard and we are going to talk about chord alterations now.

Go back to the major seventh chord here, and if you know the structure of this chord, which is the root seventh, third, and fifth, you can then make modifications to that to come up with other chords other than the basic chords, for instance, if you needed to play a major seventh flat fifth chord, knowing that the fifth is on the B string you could lower that note by one fret and that would give you that major seventh flat five chord.

Another example of this would be, if you know a dominant seventh chord, and you need to play dominant seventh with the sharpened fifth, once again the fifth is on the B string, you can raise that by one fret, and that will give you a minor seven sharp five which is sometimes referred to as an augmented chord.

So, you can use that process with all of the chord forms, that I showed you to come up with common modifications that are often used in jazz progressions.