D Chord Form Basic Mods
Basic mods include DMaj7, D7, D6, Dm, Dm7, D/F♯, Dm.
When we add tones to G Major Pentatonic, we get different Major type modes. We will add F-C, F#-C, & F#-C#. Each of these 3 hold one of the locations for Major chords in the Major key system. [V, I, IV, in the order below]. There are other possibilities too. We are staying within the derivatives of the Major key system.
Progressions are streams of changing chords. As we have seen, they are written as chord symbols, typically above something [rhythm notation, melody, lyrics]. Our goal is to continually expand our chord catalog. We do this by using chord learning systems, a simple sheet of chords, or just songs that we like. To play a song, we look at all of the chords in the song [its chord inventory], determine which we know and don’t know. If we don’t know a chord, we find a version of it. If we don’t know an open string version [Chord Connect], we can use a R5 chord. By doing this, the song may not sound right, but is possible to play. Once we know all of the chords which need to be connected and have working versions, we go back and forth between each chord pair, until we know we have it. This way, when every chord change in a song is solid, the song will not break.
For Am, the R [root] is A. The C is a b3 because the 'normal C' type tone to an A is a C# [it's what's in the A's Major scale]. The D is a 4. The E is a 5. The G is a b7 because A's normal G type tone in A Major is a G#. Both the C and G are lowered from what is 'normal' in A Major. We use a flat nomenclature regardless of the tone names. In this case, lowering these tones result in natural tones [because they are sharped in the Major]. See Derivative/Parallel. And, since the form is the same, the tone components have the same position in every key. In a minor pentatonic, we are 'missing' the 2 & 6 tones. The scale is its own thing, but it can also be compared to a heptatonic. What's 'missing'? The 2 and the 6. For C Major, the scale is simply a Major scale without a 4 & 7. The 4 & 7 create an interval of a tritone. It's a tense type of interval. When it isn't included, as with these pentatonic scales, the scale is more hollow and open.