Improvised fifth and seventh scales.

Gu Ming's incredible pentatonic scale means that there are only five tones in each octave in this scale, and both the major and minor scales mentioned above have seven tones, which are generally called natural scales (that is, the name containing all seven definitions, CDEFGAB).

Pentaphone is widely used in many music applications with a long tradition and ancient culture, such as China, Japanese and traditional music, the Far East and Africa. It is still widely used in many modern music styles, such as blues, jazz and rock music.

We know that in the major scale, the relationship between the 34th and 78th tones is semitone, and the relationship between the other two tones is whole tone. If there are eight people on a line in real life, that is, people at positions 34 and 78 stand together and others keep a certain distance. Obviously, standing together may be embarrassing (assuming there are several people of the same sex here), and it is really embarrassing!

If two people are removed, what if the fourth and seventh people come forward?

Are you feeling better? Really? Yes, I feel much better!

Well, the fourth and seventh notes in the major scale are removed to form a pentatonic scale, that is, the notes in the five positions of 12356 are retained, which is indeed the actual constituent sound of the pentatonic scale.

For major scales, when applied to the fourth and seventh tones in a song or music, there is often a tendency that must be solved because of their chromatic relationship with adjacent tones, that is, you feel unstable and need to deal with it, and its handling requires certain skills; In pentatonic scale, these two sounds do not exist, so it is easy to apply, and the relationship between the remaining sounds is very easy to coordinate and combine, which greatly facilitates improvisation, so its application is naturally welcomed by people. We are all familiar with the improvisation in electric guitar, and quite a few of them belong to the improvisation related to pentatonic scale.

Look at the comparison between the scale in C major and the pentatonic scale in C major:

Position in the ruler: 1 2 3 4 5 6 7 8

Main scale: c d e f g a b c

The pentatonic scale in major: c d e g a

It can be imagined that the construction of a pentatonic scale is nothing more than removing four and seven tones from the corresponding major scale, and the relationship between other tones can be handled according to the construction method of the major scale.

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Practical examples:

The following tone structure is the pentatonic scale corresponding to the main tone: "pentatonic scale", as the name implies, is a scale composed of five tones. In fact, in a broad sense, we can arbitrarily take five different sounds in an octave to form a pentatonic scale. But what I want to talk about today is the most common pentatonic scale in major and pentatonic scale in minor.

We can get the pentatonic scale of A major by taking 1, 2, 3, 5 and 6 tones of a major scale at will. In other words, the fourth and seventh tones are deleted, resulting in the deletion of the original semitones in the major scale, thus producing a scale composed of whole tones and small schedules. (Ex 1)

The pentatonic scale in minor can be derived from its relative major. Their key signature is the same, and the constituent sounds of the scales are the same, but the starting sound and the emitting sound are different. For example, if the relational major in D minor is F major, we can get the pentatonic scale in D minor by rearranging the pentatonic scale in F major from D.

Pentatons are widely used in many different types of music, such as shuffle, blues and Fusion. There is a reason why people like to use pentatonic scale. First, pentatonic scale is a very distinctive scale. Even if the tones are arbitrarily combined, melodious phrases can be produced. Secondly, from the point of view of harmony, taking chords in C major as an example, the pentatonic scale in C major has both chords and all available tension sounds (D and A), but there is no inevitable sound F. For example, the pentatonic scale in C minor is used on the main chord (Cm) in C minor, which has an eleventh sustain besides the inner chord, avoiding the ninth and thirteenth tones. Let the scale on the outer major chord (Cm) in C minor be Dorian, Phrygia or Iolia, and you can use the pentatonic scale in C minor. The author also suggests that readers who want to learn improvisation can start from the pentatonic scale.

It is very common and basic that Cm chords use Cm pentatonic scale and cm major pentatonic scale. I want to put forward other different usages here for your reference.

When 1) C7 is used, the extended tones of 9 and 13 can be obtained.

2)cm uses Ab major pentatonic scale, because there are Eb, Ab, Bb, so it can have the sound effect of C wind.

3) The pentatonic scale in F major is used in cm, because there are A and D, so it can be used in the case of C Dorian and C melody minor.

There are many different uses of pentatonic scale, and what I say here is only a part for your reference. I hope you can get some new ideas from the above examples. Come on!

Give it a try, take out the 1, 2, 3, 5, 6 tones of the natural minor scale, and you can get a pentatonic scale. Play it, it's a Japanese minor!

The pentatonic scale is a traditional national mode in China, which consists of five tones:

1 2 3 5 6

Pinion (branch) feather on the upper horn of uterus

The pentatonic scale is characterized by no semitone (second degree). What has no chromatic scale is called pentatonic scale, which is called pentatonic scale in detail. Widely popular in Asia, Africa, some islands in the central Pacific, Hungary and Scotland, and native American tribes before Europeans arrived in America. Often referred to as the "China scale". Its five orders have special names in the traditional culture of China, namely: public, business, communication, righteousness and Yu. Its interval organization is that each octave has three whole tones, which are divided into two strings (the upper corner of the palace) and a Dan Xian (the Zheng language), and the two segments are separated by a □ tone, as shown in the following example 2: Each tone in a scale can be used as a tonic to establish a mode, which can form five different pentatonic modes. On the basis of the pentatonic scale, different additional sounds (partials) can be inserted in each interval of the □ tone to form a pentatonic scale. The additional sounds can be inserted in three different ways to form three different scales (see Gong Diao). The pitch of additional sounds can often be changed, and the changed pitch sometimes divides the interval of □ into two intervals, each of which is about three quarters of a tone.

g、E、A、F、Bb、D、Ab