How are CHORDS & ARPEGGIOS Born ? (Triads, Tetrads, Pentads, etc) | Intervals & Major Harmonic Field

Added: 2026-05-25

[00:00:00]Hi guys, J here for a new video. Today is a theory class. Very nice class.

[00:00:06]Today let's talk about musical intervals, major harmonic fields and generated modes. Okay, so let's check it out. Okay guys, here the major scale formula. Okay, we have one ton 20 semmitony ton ton ton and semmitony.

[00:00:27]Okay, because this is the first step to create triads, the pentads and so on.

[00:00:35]Okay, the first step is mapping the the major scale formula. So let's check some examples.

[00:00:43]Here we have a simple C major scale. As you can see here, major scale, the same thing. The notes of the major scale with we apply the formula. As you can see, the formula is the same. 120 one seon 12 and finish one semmitony to go to the octave. Another example E major E major scale. If we apply the the formula.

[00:01:12]Okay. Now you already know the formula.

[00:01:15]You can you can build the the scales.

[00:01:18]Okay, the first step you already know the formula. Okay guys, now the second step. The second step we need to know about the musical interval. But what exactly musical interval is? Why this formula guys? one ton one ton one semmitone ton ton one semmitone why is this formal I will explain why we will map all the notes the chromatic scales okay 12 notes chromatic scale has 12 notes and here here it is the map we have the K B2 minor 3 or B3 3 4 B5 five sharp five six 7 and major seven. Okay, major 7 and octave. Octave the semi notes of the key. And here guys, above is the octave notes. B 9 sharp 9 10 11 sharp 11 12 B 13 and 13. Okay.

[00:02:21]And here guys, between these 12 notes, let's select seven notes because the major scale has seven notes. And if we select the seven modes here we have the formula as can see here I'm based on this musical interval map I created here this map and now you can understand why we have this formula okay why we need to use this formula now let's go to the step number three harmonic field in this case let's use the major harmonic field because exist many harmonic fields for example harmonic minor melodic minor diminish and so on okay but in our case let's use the major harmonic field okay step number three let's continue okay in this slide you can see I selected the notes of the major scale in this case I'm based on C major C major scale if I select the formula we have K 2 3 four, five, six and major 7 and octaves. Okay.

[00:03:33]And here it is the completely formula.

[00:03:36]The conclusion conclusion C major scale the completely formula K 2 3 4 5 6 and major 7. Okay. Okay guys, as we saw earlier the major scale has the formula K 2 3 4 5 6 major 7. If you start from the note C. Okay guys, if we start from the note C, we have this formula. But what if we started from the other notes?

[00:04:02]Would the formula change?

[00:04:04]Let's check it out. Yes, guys, the formula chance.

[00:04:10]For each note we start with, a new formula will be generated completely different in its configuration compared to the others. For example, if we started in D, the formula now is K 2 B3 4 5 6 and 7. Okay, different from the if we start from the C as you can see. Now the third note we got a B B3 and the seven notes. It's not a major 7, it's a simple seven. The same thing as you can see now the formula is K B2 B3 4 5 B6 and 7. Okay, for each note a new formula will be generated. Okay guys, okay, now you understand that the formula change with notes we start with. Then we enter in the harmonic field and it generated modes. This is the last step for you understand how trients exodus and aptages are created. Okay guys.

[00:05:25]Okay. Now we are in the major harmonic fields. Step three. I I was talk about a preparation before but now we are entering in the major harmonic fields and the mode generated. The major harmonic field has seven different degrees. We call them modes. Okay guys, there are three major, three minor and one diminish Seven modes. Okay, three major, three minor and one diminished.

[00:06:00]Okay, totaling seven modes. This last one, diminish is minor but different from the others because it has a flat fifth in its formula. Okay. The formula is K, B3 and B5. You will understand. Calm down. You will understand. The first mode to the first note in this case C is major Ionian. The second Dorian minor. Third Fian minor.

[00:06:29]Legion major mixelyian major Iolian minor. And Lorian diminished. Okay. This class is not about the modes because modes it's another universe. Okay, it's only uh a preparation. I I can talk about in other classes but not in this class. Okay guys, this class only three steps major scale formula intervals, musical intervals and major harmonic fields.

[00:06:59]Okay. Well, as you can see here guys, it's very easy to memorize.

[00:07:04]various to memorize because the degrees one, four and five is major two, three and six minor and the seven diminish it.

[00:07:16]Okay, another cool thing here guys because the six degree iolian is relative to the first degree that is they are related with each other and can be substituted in some cases in a piece of a music for example.

[00:07:34]Okay, now we are in the major harmonic fields and modes. Okay, I map all the formula. This is the first formula to see K 2 3 4 5 6 and major 7 because as we saw before, if you we put all the notes inside the musical interval map, we got we get the this formula. Okay, if I start from C, I got this formula. From F, this formula from G this formula. A this formula and B this formula. So how are chords and arpeggios created guys? First of all, chords and arpeggios have the same structure. The difference is chords is harmony playing together. Blam blam blam. All notes played together and arpeggios the same thing the same notes but in melody. So and the chords blam.

[00:08:37]Okay. Chords together all notes together and arpeggios notes by notes. Notes per notes per notes. Okay. Quad arpeggio can be triads three notes, trets four notes, pentage five notes, a six notes and aes seven notes. You can create more than seven notes. that will depend on the type of harmony fields you are you use.

[00:09:02]Okay, there are many others and you can even create your own Houston one. Okay, in our case we are using the major harmonic field which is composed of seven notes. In this case the maximum is aptages. Why? Because seven notes.

[00:09:22]Now let's create our first triad. Okay, our first tri creating triads is the basic the basic arpeggio chord just three notes. You can create many types of triads but in this case let's use the the famous formula 1 135. Okay, 135.

[00:09:43]When you ch three 3 to four, for example, the the common one five, you change the three to a four. one four five is a switch four switch two one two five you remove the the the third okay but I will not talk about this in this class but just to understand other types of tri you can create in this case let's working uh inside the famous formula 1 35 okay if you have a simple third your arpeggio and chords are major. If you have a B3 minor and if you have B3 and B5 diminish it. Okay. But in this case half diminish it not diminish it. Looking in this diagram for example for C we have the K the third and the five. In this case major why major? Because the third is not a B.

[00:10:46]It's not a B3 is a common three. Okay.

[00:10:50]In this case, D will be D minor. Why D minor? Because the third is a B3.

[00:10:58]Next chord or arpeggio, E minor. Why E minor? Because we have the third B3. F major. Why F major? Because we have the third. G major because we have the third. A minor relative to the C. And why diminished? In this case, half diminished. I will explain why. Because we have B3 and B5. Okay. Half diminish We got this symbol here. Okay. And diminish it. Now let's create a tetraes.

[00:11:32]As a bonus.

[00:11:34]As a bonus. Let's create a tet.

[00:11:38]And tred. Let's include that there are many tetreds types of tetreds. Okay. But in the case, let's use the famous tids.

[00:11:46]The formula is composed to 1 357 1 357. Okay, that's the formula to that pent nine in this case. So let's create to the C. In this case, we have the K, the third, the five, and the major 7. We got the thirds as you can see here in the diagram. Okay, the diagram.

[00:12:12]Now the minor, the minor 7 because we have the seven. Okay. C we have the major 7. As you can see the seven is major but the D minor and E minor we have only the seven. In this case D minor 7 and E minor 7, F major.

[00:12:34]Okay. And so on you can create. I put it here. I put here some example C7 major. K 3 five seven major D minor 7 K B3 five and seven and B because that is four notes. We have the K B3 B5 and seven. Okay. Now you can try others as example. Okay. Training this, try this as example. And the pentage let's include the nine. The nine in this case is an octave to the second pant. Let's create the F7 major with nine. We have the K the third. If you look if you watch if you if you look here in the diagram you will find the formula K 3 5 major 7 and uh P9. Okay. Okay. 3 5 major 79.

[00:13:34]And now you can try or to create your own pentage. Okay guys, and finish it these three step. Now you can create your own triads, tetraes, pentages, exits, why not? And aptages by yourself. Okay guys, it's a basic course to understand correctly how trades, droids, pentads and so on are created.

[00:14:02]Okay, in future I will create a a master class about it but not here because it's only an introduction to to you understand better how tris and fantasies are created. Okay guys, so guys I hope you enjoy this course. My best regards.

[00:14:22]Okay. And I see you in the next time.

[00:14:25]Okay.