Each grade interval quality (decreased, minor, major, perfect, extended) expresses a possible adjustment, that is, a possible increase or decrease in the pitch of the notes in the major scale in step 4. A floating chord is known in music theory as a modified chord because it takes one of the above chord qualities and modifies it in some way. C-5th: The quality of the 5th note in the major scale is perfect, and the quality of the required note interval is increased, so the name of the 5th note range – G – is adjusted from 1 halftone/halftone to G#. The notation of the chord notes reflects this sharpening of the notes: #5. The last triad is called the Extended Triad. To create an extended triad, play a major triad, then increase the top note by a halftone (there are now 8 halftones separating the top note and the bottom note – this is called the 5th extent). It seems even more scary and is rather mysterious. The theoretical term of triad chord music means that 3 or more notes are played together or overlap. Each individual note of a triad chord can be represented in music theory with a note interval used to express the relationship between the first note of the chord (the rootote) and the note in question. Listen to the difference between a triad on C (C-E-G) and one on A (A-C-E). The first triad sounds positive/happy (it`s a major triad), while the 2nd sounds negative/sad (it`s a small triad). In music theory, it is said that this triad chord in its current form is in the root position, since the root of the chord – note C – is the note with the lowest pitch of all triad notes. Below is a table showing the note interval qualities for all chords in the triad, as well as the short names/abbreviations of the interval in parentheses.
If we look at the table above, the note intervals for the chord quality we are interested in (extended triad) are in the key C-maj-3rd and C-aug-5th. All these triad qualities are based on the 1st, 3rd and 5th notes of the piano diagram above of the major scale. The steps of the lesson then explain how to build this triad with the intervals of 3rd and 5th notes, and finally how to construct the variations of inverse chords. While a major triad like C-E-G contains a major third (C-E) and a minor third (E-G), the fifth interval (C-G) being perfect, the extended triad has an extended fifth and becomes C-E-G♯. In other words, the top note is increased by a semitone. H.R. Palmer notes: With the guidance of Franz Schubert (in his Wandering Fantasy), Romantic composers began to organize many pieces through descending major thirds, which can be seen as a large-scale application of the extended triad (although it probably originated from other development lines that were not necessarily associated with the extended triad). This type of organization is common; In addition to Schubert, she appeared in the music of Franz Liszt, Nikolai Rimsky-Korsakov, Louis Vierne and Richard Wagner.
Easy, right? Well, the delicate piece. You`ll find that if you build triads that start on different white notes, they can sound very different. Indeed, the number of semitones (semitones or half-steps) that separate each of the notes is different depending on the white note you choose as your starting point. These differences in intervals lead you to create different types of triads. These grade interval qualities are diminished, minor, major, perfect and amplified. Since they do not contain a perfect fifth, augmented and decreased chords have a restless feeling and are usually used sparingly. An extended agreement consists of two large third parties, which is in addition to an extended fifth. A diminished chord is composed of two small thirds that add up to a decreased fifth. Listen carefully to an extended triad and a diminished triad.
Augmented triads have an unusual and mysterious sound, while diminished chords have a disturbing and dissonant sound. The other two types of triads are major and minor. The figured bass notation for a triad in the root position is 5/3, with the 5 placed above the 3 in a bar chart. The second note of the original triad (in the root position) – the E note is now the note with the lowest pitch. The augmented triad on the V can be used as a substitute dominant and can also be considered as III ♭+.  The following example shows ♭III+ as a dominant replacement in an ii-V-I reversal in C major. The basic musical triad is easy to create – all you need to know is your alphabet and how to count to 8! In this way, you built a triad using 2 small 3rds on top of each other. A major triad has a major-3.
(between root and 3.), followed by a minor-3. (between the 3rd and 5th). The first is a diminished triad – it`s a variation of a small triad. To create a diminished triad, simply play a small triad, then lower the top note by 1 halftone (there are only 6 semitones between the lower and upper notes of the triad – this is called the 5th decrease). Triads are chords composed of three notes played together, composed of the rootote, the third and the fifth of a scale. In a triad, the base note is at the bottom, with the third and fifth stacked on top. .