372 . IMPROVISING WITH A HANDPAN OR TONGUE DRUM. THE CONSTANTS-VARYATINGS METHOD. THE 4 SOURCES OF REPETITION. RHYTHM, SHAPE OF A MELODIC THEME, BASS LOOP, 1,2 CHORDS.

 The basic idea here is to chose a source od simplicity and invarious degrees in time more complexity and returning to the simplicity.     Thus SIMPLICITY->COMPLEXITY->SIMPLICITY , ETC  and also by REPETITION , ASSIMILATION, INNOVATION . THE MAIN CONCEPTIS TO CREATE A "FLOW" AND REMAIN INTHE "FOW" A TERM OF PSYCHOLOGY THAT DESCRIBES THE FLOW OF ENERGY AND CREATIVE FORCE FROM THE IMMORTAL SOUL TO THE MORTAL PERSONALITY . The improvisation with such a melodic percusion instrument like a handpan or tongue drum (which is much like a metallophone) is the 1st type of improvisation (single instrument and unpredictable rhythm, unpredictable harmony, unpredictable melody ) as in post 295. 

We should not forget of course the 3 principles of improvisation as the post 295,

BASIC PRINCIPLE 1=HARMONY POLARITY 

BASIC PRINCIPLE 2: MELODIC MONOTONICITY-VARIATION POLARITY

BASIC PRINCIPLE 2: THE BIOWARE OVER THE HARDWARE.

For analysis of these 3 principles see post 295. 

THE 4 SOURCES OF SIMPLICITY AND CO9NSTANTS REPETITIONS ARE 

1) RHYTHM CONSTANTS(GROOVE) (We keep the rhythm invariant and we shift it over the musical notes and octaves)

2) ASCENDING-DESCENDING-STAYING  SHAPE OF A MELODIC THEME CONSTANTS (We keep the melodic theme shape invariant and we translate in the scale , or invert it or elongate it)

3) A BASS LOOP THAT REPEATS (OSTINATO CONSTANTS)  (We keep a bass loop invariant and we enhance it with melodic themes) 

4) ONE OR TWO CHORDS ALTERNATION (CHORDS CONSTANTS) (We keep the harmony of the 1or 2 chords invariant and we create parallel fitting melodic themes)

Here is a video by a nice girl and improviser who explains these 4 sources of simplicity

https://www.youtube.com/watch?v=PEuwaKR0cbY&ab_channel=AmyNaylor

371. THE MOST CHARACTERISTIC ADVANTAGES IN THE FLOW OF PLAYING MUSIC OF SOME OF INSRUMENTS.

 There are musicians that play 5-10 or 10-12 different types of instruments. An excellent example is Gunhild  Carling. This is not so much the result of a special irreplaceable inherent talent of a special artist as it is the result of a special talented way to learn  playing music.  It the result of a special  method of learning music and playing music. 

Each type of musical instrument is exceptionally good for some specific style or way of playing the music that no other type of musical instruments is as comparable good and capable of . 

Here si a list of examples

 

1) FLUTES-WHISTLES 

They  are particularly good for angelic sound, that because of the blowing makes the musician emotionally involved more that say just playing with the hands. Furthermore they are capable of easy trills and ornamentations , that other types of wind instruments are not capable.

 

2) HARMONICAS 

They are particularly good for creating easily melodic solos that are by default 50% intervals of 3rds and 50% intervals of 2nds. They are also very good in alternating solo with a locally fitting chord or pair of notes. Furthermore because of the blow and draw of breath they make the musician much emotionally involved. At low octaves the metal reeds are incorporated very well in the pipe organ which is a sound of better color than wooden reeds. 

 

3) CLARINETS, SAXOPHONES, OBOE,  CHALUMEAUX , DUDUK, XAPHOON ETC

They are particularly good in producing loud and non-breathy sound at the 4th octave compared e.g. to flutes. And as the flutes too  they are capable of easy trills and ornamentations ,

 

4) TROMBONES

They are exceptionally good in producing loud sound at the low 3rd and 2nd octave, and very close to the human voice. Furthermore, the slide of trombones gives a very pathetic and human-like glissandi of the sound of the musical notes which is unique among other instruments.

 

5) GUITARS, MANDOLINES, BOUZOUKI, UKULELE, CUATRO ETC

The guitars and ukulele-like tuned such instruments  are particularly good in playing easily fast harpisms (parts of arpeggios) over the strings of a chord , which gives a flowing harmonic solo or counter melody to a main melody.

6) FRETLESS GUITAR , OUD ETC

Here the main advantage is of course that can be played , all frequencies , even outside the  12-notes Bach-scale , like harmonics (overtones) and subharmonics (undertones). The glissandi that can be produced are magical.  But also one special characteristics is that because there are not metallic frets, when the string is pressed by the finger on the fingerboard, that sound is like a muted sound with a slight indeterminacy of the pitch, like a drop of water falling on a clay pitcher. 

7) BOWED STRING INSTRUMENTS

Here obviously the main characteristic advantage is not so much the continuous sound (which the winds have also), but the rhythm that bowing can give to a continuous note (which the winds cannot give so easily). Also that it is easier to sustain longer continuous notes compared to flutes. 

8) THE HARP, THE PANFLUTE

Here the main advantage are continuous up or down among the full scale and in many octaves of all the strings and notes ofthe scale. The main area of advantage and "flow" in the harpare diatonic solos and secondly chords and arpeggios of them. The sound of the harp due to the high impedance (because of small sounbox , the energy remains in the strings that pulsate longer) the sound is.....celestial. Furthermore in the harp there is great  easiness that we can alternate a solo with its locally fitting chord (as it is also done with harmonicas, that some times are also called harps). 

9) TONGUE DRUMS (HAND PANS, RAV VAST DRUMS ETC)

Here obviously the main characteristic advantage is to play melodic percussion rhythms.

10) When we shift to digital instruments in the tablet , or as special midi instruments etc, w get a whole space of different advantages. One of the most amazing examples is when the notes e.g. of a diatonic scale have a  2-dimenisonal layout (e.g. Vertically by 3rds and horizontally by 2nds) where we may play randomly horizontally inside say a 5-notes subscale of the diatonic and vertically in only 3 rows, thus temporarily inside one only chord.  This also can be done with string instruments like guitar, oud or cuatro, when the tuning is an overtone tuning, so that the chords of the default scale are played in one or at most 2 frets. 

 

 

370. THE TOOLS THAT SET SIMPLICITY IN PERCEIVING ANY MELODY

 As we have metioned efore inother posts, the 3 main tools to set simplicity in the perception of the melodies are 

A) PITCH STATICS : THE THREECHORDS AND TETRACHORDS (3 OR 4 NOTES Micro-subscales) in which the elementary melodic themes occur.In fast soloing ,they serve a s random-cloud palying aroun a note ofthem. 

B) RHYTM: The realization of an elementary melodic theme with a rhythmic patter, and the full melody by  a progression of rhythmic patterns

B) PITCH DYNAMICS : THE 3 POLARITIES , UP-MOVES, DOWN MOVES , STATIONARY  OSCILALTIONS

In other posts we have called the realizations of the 3 dynamics in the threechords and tetrachords, as far as abstract order-structure is concerned, as "Dolphin -Words". 

Synethesia (translating sounds to colors and shapes) plays also an important role in simplifying the perception of melodies 

https://www.youtube.com/watch?v=ZVC3E16FCrk&ab_channel=TheRoyalInstitution

369. 3 OR 4 CHORDS HARMONICAS

 3 OR 4   CHORDS HARMONICAS

In this post we describe some (15 types ) of easy playing and good sounding 3-4 chods harmonicas. Of course we should remember that if we want all 7 chords of the diatonic scale in the harmonica we must utilize the cyclic tuning. The value of lesser number of chords in the harmonics is simply to focus on specific styles harmony simpe improvisations 

The rule for 2 or 3 or 4  chords-based  tunings is that 

1) horizontally either in the blow row or in the draw row are not allowed intervals other than 3rds, 4ths, 5ths for reasonsof harmony. 
2) But any inversion of the chord is allowed

3) And of course you try to put as many notes of the diatonic scale as possible and with the right pitch order, so that in cyclic  sequence they are in the smalest possible intervals

The way to play such harmonicas is  better not uniform distribution of time among the notes but to spend more time in the 3 zones (either blow or draw) of 3 consecutive notes that define the pattern of the 3 or 4 chords this  3+3 +3 holes.

The role of such 3 or 4 chords tuning of harmonicas is not to play all possible songs and melodies (this is best done by the cyclic tuning) but to improvise on melodies that are accompanied only with these 3 or 4 chords AND  to play easily only these 3 or 4 chords as it is

simple to know where to find them. This combination of solo playing and chord playing when estricted to 3 or 4 chords only is best done with such tunings and not with the universal cyclic tuning than can play of course the same thing but in a quite more difficult way requiring significant skill. If the improvisation melody in such 3-4 chords harmonicas requires passing notes  that exactly missing notes from the sequence ofthe diatonic scale, then bending of notes might apply. On the other hand the missing notes define subscales of the diatonic scale that are beautiful and fitting best with the chords

We remind the reader what the letters inthe next mean

M=major 

m=minor

d=diminished

The most obvious layout  of the 1M 4M 5M major chords ofthe diatonic scale that has 3 times the 1M

 2 times the 5M and one time the 4M is  the next for the Fmajor scale

The chord positions are as in the next table

	1	2	3	4	5	6	7	8	9
blow	1M			4M			1M
draw	5M			1M			5M

with tuning table 

This pattern of 3 basic chords,of the Ionian mode (major),can apply also to all 7 modes, as  each mode

harmonically can be characterized by its 3 main chords A1 (root) A4 (on 4tth step) A5 (on the 5th step.

1	2	3	4	5	6	7	8	9
blow	A1			A4			A1
draw	A5			A1			A5

So all the modes are the next triads of chords

IONIAN= 1M-2M-5M

DORIAN=2m-5M-6m

FRYGIAN=3m-6m-7d

LYDIAN=4M-7d-1M

MIXOLYDIAN=5M-1M-2m

AEOLIAN=6m-2m-3m

LOCRIAN=7d-3m-4M

E.g. the FRYGIAN mode would be 

1	2	3	4	5	6	7	8	9
blow	3m			6m			3m
draw	7d			3m			7d

with

A1=3m               A4=6m      A5= 7d

If we want to set the 3 basic major chords of a diatonic scale 1M, 4M, 5M at the blow row ,together with their closest from below diminished chords (that resolve to them) that is 7dim, 3dim, 4#dim , then this is possible with a bonus of two additional chords apearing in the draw row the 3m and 6m.
Here is how this can be done for the G major diatonic scale in the next table. The 3 basic major chords are Gmajor, Cmajor Dmajor in the blow row, and the 3 diminished chords that the resolve to them at the draw row are the  F#dim, Bdim, C#dim. The bonus chordss are the Bm and Em. The total 3 octaves scale has interval structure  2-2-1-2-4-1-4-1-2-2-1-4-4-1-2-2-1-2-2

The chord positions are as in the next table

	1	2	3	4	5	6	7	8	9
blow	1M			4M			5M
draw	7d			3d			4#d

If someone does not want to utilize the resolving diminshed chords and wants to remain inside the diatonic scale on way to do it is as in the next table for the C major scale

	1	2	3	4	5	6	7	8	9
blow	1M			4M			1M
draw	7d			5M			7d

Notice that the main goal of such a tuning is not to play all posible songs of the C major scale (this is done by the cyclic tuning) but to play songs and improvise over the 3 major chords of the scale 1M 4M 5M.

Still another version of the 1M 4M 5M that has 3 times the 1M 2 times the 5M and one time the 4M is  the next forthe Fmajor scale

The chord positions are as in the next table

	1	2	3	4	5	6	7	8	9
blow	1M			4M			1M
draw	5M			1M			5M

And still another alternative is the

	1	2	3	4	5	6	7	8	9
blow	1M			1M			4M
draw	7d			5M			1M

With tuning table at  the C major the one below

If on the other hand we want to substitute the 4M chord with the minor relative 6m , then a possible tuning for the F major scale would be the next table

	1	2	3	4	5	6	7	8	9
blow	1M			6m			1M
draw	7d			5M			7d

While if we want as in the blues to substitute the 4M with the lower relative chord 2m, then a possible tuning would be as in the next table for the G major scale. IN MY OPINION THE RICHTER TUNINGI SNOT THE OPTIMAL TUNING TO PLAY IMPROVISATIONS OVER THE TRIAD OF CHORDS I  ii   V (or 1M 2m 5M) . The next tuning iS CLOSER TO THE OPTIMAL FOR IMPROVISATIONS OVER THE TRIAD I  ii   V.

	1	2	3	4	5	6	7	8	9
blow	1M			2m			1M
draw	7d			5M			7d

Stil another version o 1M , 2m 5M is the next for the C major scale

	1	2	3	4	5	6	7	8	9
blow	1M			5M			1M
draw	7d			2m			7d

We may compare it with  the Richter tuning

	1	2	3	4	5	6	7	8	9
blow	1M			1M			1M
draw	5M			2m			7d

For a minor chords triad like the iii, vi, ii, (3m , 6m, 2m) the next table of tuing is a way for the Bb diatonic scale

	1	2	3	4	5	6	7	8	9
blow	6m			2m			6m
draw	3m			6m			3m

The full 3-octaves scale in semitones for te abive harmonica is 2-1-4-3-2-3-2-1-4-2-1-4-3-2-2

Notice that there in it the inverse of the Greek-Richter pentatonic 2-1-4-3-2 (see post 117 ) which is maximal harmonic, and is repeating twice in the full 3-octaves scale. Also there is the 3-2-3-2 which is 4 notes part of the standard pentatonic scale 3-2-3-2-2.





For triads like  1M 4M 3m the next table is a  way for the G major diatonic scale

	1	2	3	4	5	6	7	8	9
blow	1M			4M			1M
draw	7d			3m			7d

MORE TUNIGS ARE POSSIBLE WITH 4 CHORDS LIKE THE NEXT PATTERNS

	1	2	3	4	5	6	7	8	9
blow	4M			5M			4M
draw	1M			2m			1M

	1	2	3	4	5	6	7	8	9
blow	4M			5M			4M
draw	3m			1M			3m

	1	2	3	4	5	6	7	8	9
blow	1M			4M			1M
draw	7d			3m			7d

	1	2	3	4	5	6	7	8	9
blow	4M			5M			4M
draw	1M			6m			1M

368 A CLASSICAL METHOD OF SINGLE INSTRUMENT IMPROVISATION-COMPOSITION: VERTICAL HARMONY BY 3 OR 4 NOTES CHORDS AND SIMULTENEOUS MELODIC THEMES IN 3 OR 4 NOTES TETRACHORDS TRANSLATED OR INVERTED VERTICALLY ACROSS THE NOTES OF A CHORD AND ELONGNATED HORIZONTALLY WHEN BRIDGING CHORD TRANSITIONS.

 A CLASSICAL METHOD OF SINGLE INSTRUMENT IMPROVISATION-COMPOSITION: VERTICAL HARMONY BY 3 OR 4 NOTES CHORDS AND SIMULTENEOUS MELODIC THEMES IN 3 OR 4 NOTES TETRACHORDS TRANSLATED OR INVERTED VERTICALLY ACROSS THE NOTES OF  A CHORD AND ELONGNATED HORIZONTALLY WHEN BRIDGING CHORD TRANSITIONS.   

SINGLE CHORD IMPROVISATION: We may as alternate or sound as drone  the root chord of a scale as power chord (only an  interval of 5th) with melodic themes (of 3 or 4 notes and inside  a three-chord or tetrachord ) based on each of the  the 3 notes of the root 3-notes or 4 notes chord and translated or inverted melodically by intevals of 3rd across the 3 or 4 notes of the roor chord. We make sure of course that the notes of the chords in total during  the chord, sound at least 50% of the time duration. 

E.g. in  the Dorian mode of the C diatonic sacle and with an harp,  here

https://www.youtube.com/watch?v=NomPFFmycDo&ab_channel=rharp111

https://www.youtube.com/watch?v=9BD1y0TOk3o&t=774s&ab_channel=Buddha%27sLounge

MANY CHORDS-CYCLE  IMPROVISATION: We do the same as with the one chord for each chord of the chord-cycle. with melodic themes (of 3 or 4 notes and inside  a three-chord or tetrachord ) based on each of the  the 3 notes of the underlying  3-notes or 4 notes chord and translated or inverted melodically by intevals of 3rd across the 3 or 4 notes of the roor chord. We may sure thatthe melodic centers are notes of the underlying chord. At the chord transition one of the previous three-chords or tetrachords of the melodic theme becomes the bridge between the 2 consecutive chords and we constinue as before.  

The cycle of the chords may be fixed (Predetermined harmony) or improvised also during the melody improvisation (unpredicted harmony).

367.ALL 2-chords HARMONICAS OF HEXATONIC SUBSCALES OF THE DIATONIC SCALE THE HARMONIC MINOR THE MELODIC MINOR AND THE 7-NOTES BLUES SCALE

 In  the next we will describe harmonicas with hexatonic scales and two only chords 

(See also https://simplerguitarlearning.blogspot.com/2020/01/291-hexatonic-scales-for-harmonica.html ) or posts 291   and 274

THESE 2-CHORD HEXATONIC HARMONICAS ARE NOT DESIGHNED SO MUCH TO PLAY ALL POSSIBLE MELODIES ON A SINGLE HARMONICA BY BENDING AND OVERBLOW BUT TO MAKE EASY IMPROVISATION ON HEXATONIC SUBSCALES OF  THE SCALES DIATONIC, HARMONIC MINOR, 7-NOTES BLUES (INVERSE HARMONIC MINOR) , DOUBLE HARMONIC MINOR, MELODIC MINOR ETC .

 SUCH 2-CHORDS IMPROVISATIONS ARE COMMON IN CUBA AND LATIN JAZZ FOLK MUSIC, GREEK ISLANDS MUSIC, IRISH MUSIC ETC

ALL OF THE HEXATONIC TUNING  IN THIS DISCUSSION HAVE A SINGLE CHORD AT THE BLOW ROW AND ANOTHER SINGLE CHORD AT THE DRAW ROW.

I  have ordered in Seydel company and play all of the next harmonicas of diatonic gendre  chromatic gendre and enharmonic gendre hexatonic sub scales of  the diatonic scale of the harmonic minor scale and invererse harmonic minor scale (Blues 7-tonic scale ) and when I will find time I  will upload sound files with improvisations of them. Of course I think it is much cheaper instead of ordering so many custom 2-chords hexatonic harmonicas as below, to just tune the digital harmonica Lekholm DM48 which I also have and it is fun to try these tunings and easy improvisations on them 

In the examples below for reasons of simplicity I use the C major scale and the A harmonic minor scale, but my hexatonic harmonicas are in many scales like Bb major , Fmajor G major , G minor etc

The best sounding are the next from the 3 list below

a) LOCRIAN:d1M    B-C-D-E-F-G-B  in semitones 1-2-2-1-2-4  and over the Blow-Draw 2 chords Bdim-Cmajor (also called enharmonic major) It is also called Genus Secundum 6-tonic scale.

b)  the 3.7) 7th mode   in semitones 1-2-1-2-2-4  based on the 2 chords 

G#dim-Amin  (hexatonic enharmonic minor)

c) the  IONIAN/MYXOLYDIAN: M2m       C-D-E-F-G-A-C in semitones 2-2-1-2-2-3 and over the Blow-draw 2 chords Cmajor Dminor

                                             or  G-A-B-C-D-E-G and over the Blow-Draw 2 chords Gmajor Aminor (also called Celtic minor hexatonic)

d) 3.5) 5th mode  E-F-G#-A-B-C-E  in semitones 1-3-1-2-1-4  based on the 2 chords 

Emajor-Fmajor  

and the 

e) 2.3) 3rd mode Eb-F-Gb-A-Bb-C    (or in semitones 2-1-3-1-2-3)  based on the 2 chords Ebmin-Fmajor (Erik Satie hexatonic scale)

ALL OF THE HEXATONIC TUNING  IN THIS DISCUSSION HAVE A SINGLE CHORD AT THE BLOW ROW AND ANOTHER SINGLE CHORD AT THE DRAW ROW.

ACTUALLY ANY TWO SUCCESIVE CHORDS IN THE DIATONIC SCALE (E.G. 7DIM-1M, OR 4M-5M, 3M-4M, 5M-6m , 6m-7dim) CAN BE USED FOR AN APPROPRIATE  TWO-CHORD HEXATONIC TUNING HARMONICA.

THUS WE WILL HAVE THE NEXT 6 TYPES OF CHORD PAIRS IN THE HARMONICA WHICH ARE CHORDS IN DIATONIC CHROMATIC RELATION (the roots are separated by an interval of 2nd) 

e.g. if the 7-notes diatonicscale is the C-D-E-F-G-A-B-C in semitones 2-2-1-2-2-2-1  then

M=MAJOR m=MIOR d=DIMINSIHED

1,2,3 etc =number of semitones that the roots are apart

1) IONIAN/MYXOLYDIAN: M2m       C-D-E-F-G-A-C in semitones 2-2-1-2-2-3 and over the Blow-draw 2 chords Cmajor Dminor

                                             or  G-A-B-C-D-E-G and over the Blow-Draw 2 chords Gmajor Aminor (also called Celtic minor hexatonic)

2) DORIAN: m2m                D-E-F-G-A-B-D in semitones 2-1-2-2-2-3  and over the Blow-Draw 2 chords Dminor-Eminor (also called Celtic major hexatonic)

3) FRYGIAN: m1M             E-F-G-A-B-C-E in semitones 1-2-2-2-1-4  and over the Blow-Draw 2 chords Fmajor-Eminor (also a hexatonic version of the 

                                              akebono 5-notes scale)

4) LYDIAN: M2M                     F-G-A-B-C-D-F  in semitones 2-2-2-1-2-3  and over the Blow-Draw 2 chords Fmajor-Gmajor (also called an alternative 

                                             version of Celtic major scale)

5) AEOLIAN: m2d                  A-B-C-D-E-F-A  in semitones 2-1-2-2-1-4  and over the Blow-Draw 2 chords Aminor-Bdim 

6) LOCRIAN:d1M                     B-C-D-E-F-G-B  in semitones 1-2-2-1-2-4  and over the Blow-Draw 2 chords Bdim-Cmajor (also called enharmonic major) 

But we also present many other non-diatonic chromatic pairs that involve also augmented chords and a re met in the harmonic minor (which apears also in the overtone sequence)  double harmonic minor, melodic minor (which apears also in the overtone sequence)  etc

E.G. 

m2M (Erik Satie hexatonic of the harmonic minor heptatonic)

M2dim (hexatonic from melodic minor)

m1m

M3m

M1M (Hexatonic from the harmonic minor)

aug2M

dim1m

m6m

aug3aug

dim1aug

etc

In the future I will upload sound files that show how such harmonicas sound as I have more  than 30 different such hexatonic scales 2-chords harmonicas  with different emotional moods. With a simple 2-chord backtrack they are an excelelnt simple way to learn and practice improvisations of any type of emotional mood.

2) ALL 7 HEXATONIC SCALES FROM THE 7 MODES OF THE 7-NOTES BLUES SCALE (OR INVERSE HARMONIC MINOR SCALE)

Some og these hexatonic scales of the inverse harmonic minor are also hexatonic scales of the diatonic scale or the melodic minor or the double harmonic minor!

7-NOTES BLUES SCALE C-D-Eb-F-Gb-A-Bb  (or in semitones 2-1-2-1-3-1-2) also inverse harmonic minor scale, with chords 

Cdim, Dminor, Ebminor, FMajor, Gb augmented , A diminished , Bb major

2.1) 1st mode C-D-Eb-F-Gb-A-C    (or in semitones 2-1-2-1-3-3)  based on the 2 chords Cdim-Dm

2.2) 2nd mode  D-Eb-F-Gb-A-Bb-D   (or in semitones 1-2-1-3-1-4)  based on the 2 chords 

Dmin-Ebmin (hexatonic caval double harmonic minor too)

2.3) 3rd mode Eb-F-Gb-A-Bb-C    (or in semitones 2-1-3-1-2-3)  based on the 2 chords Ebmin-Fmajor (Erik Satie hexatonic scale)

2.4) 4th mode F-Gb-A-Bb -C-D-F    (or in semitones 1-3-1-2-2-3)  based on the 2 chords 

Fmajor-Gbaug ( inverse hexatonic neapolitan )

2.5) 5th mode  Gb-A-Bb-C-D-Eb-Gb   (or in semitones 3-1-2-2-1-3)  based on the 2 chords 

Gbaug-Adim

2.6) 6th mode A-Bb-C-D-Eb-F-A    (or in semitones 1-2-2-1-2-4)  based on the 2 chords Adim-Bbmajor (hexatonic enharmonic major, or hexatonic Locrian mode) 

2.7) 7th mode  Bb-C-D-Eb-F-Gb-Bb   (or in semitones 2-2-1-2-1-4)  based on the 2 chords 

Bbmajor-Cdim (Hexatonic melodic minor too)

3) ALL 7 HEXATONIC SCALES FROM THE 7 MODES OF THE 7-NOTES HARMONIC MINOR SCALE .

Some og these hexatonic scales of the inverse harmonic minor are also hexatonic scales of the diatonic scale or the melodic minor or the double harmonic minor!

7-NOTES HARMONIC MINOR  SCALE A-B-C-D-E-F-G#-A  (or in semitones 2-1-2-2-1-3-1) with chords                               Aminor-Bdim-Caug-Dminor-EMajor-FMajor-G#dim-Aminor

3.1) 1st mode A-B-C-D-E-F-A   in semitones 2-1-2-2-1-4  based on the 2 chords 

Amin-Bdim  (Aelian diatonic too)

3.2) 2nd mode B-C-D-E-F-G#-B  in semitones 1-2-2-1-3-3  based on the 2 chords Bdim-Caug 

3.3) 3rd mode C-D-E-F-G#-A -C in semitones 2-2-1-3-1-3  based on the 2 chords Caug-Dminor (Neapolitan Hexatonic too)

3.4) 4th mode  D-E-F-G#-A-B-D  in semitones 2-1-3-1-2-3   based on the 2 chords Dminor-Emajor (Erik Satie hexatonic)

3.5) 5th mode  E-F-G#-A-B-C-E  in semitones 1-3-1-2-1-4  based on the 2 chords 

Emajor-Fmajor  

3.6) 6th mode F-G#-A-B-C-D-E-F   in semitones 3-1-2-1-2-3  based on the 2 chords 

Fmajor-G#dim  

3.7) 7th mode   in semitones 1-2-1-2-2-4  based on the 2 chords 

G#dim-Amin  (hexatonic enharmonic minor)

FROM THE 7-NOTES MELODIC MINOR THE HEXATONIC SUBSCALES NOT COVERED BY THE PREVIOUS ARE THE NEXT

E.g. let the 7-notes melodic minor A-B-C-D-E-F#-G#-A in semitones 2-1-2-2-2-2-1 and chords

m-m-aug-M-M-m-d the next are additional hexatonic

C-D-E-F#-G#-A-B-D in semitones 2-2-2-2-1-3 and 2 chords Caug-Dmajor

B-C-D-E-F#-G#-B  in semitones 1-2-2-2-2-3 and 2 chords Bminor-Caug

F-G#-A-B-C-D-F#  in semitones 2-1-2-1-2-4 and 2 chords F#minor-G#dim

THE WAY TO LAYOUT THE TUNING BASED ON THE HEXATONIC SCALE IS DIRECT BECAUSE 6 NOTES MAKE AN OCTAVE AND THEN WE REPEAT 3 TIMES. FURTHERMORE THE ODD OR EVEN NOTS MAKE THE ONLY 2 CHORDS 

E.g. for the LOCRIAN mode above (or Enharmonic major) which is  one of the best sounding hexatonic harmonicas 

6) LOCRIAN:d1M                     B-C-D-E-F-G-B  in semitones 1-2-2-1-2-4  and over the Blow-Draw 2 chords Bdim-Cmajor (also called enharmonic major)

We would chose the best sounding chord as blow and less good sounding chord as draw (as inhale drawing last in time less and is psychologically natural to resolve in the blow -exhale) thus the natural layout would be

[attachment=0]LOCRIAN_ENHARMONIC_MAJOR_1M_7dim_C3 (1).gif[/attachment]

In the table below valves are  at all notes but this is simply indicative and not optimal if you choose which notes you want to bend and overblow.

366. Revealing observations in the beatiful improvisation of the violonist Stephan Grappelli: Three separate rythmic densities levels of the melody which spans at each melodic phrase 3 octaves.

 When someone is listening the free improvisations of the famous violonist Stephan Grappelli he is amazed from the reachness and beauty of the melodic improvisation

When the melodic perception is trained two obervations are readily made that reveal part of the factors of beauty and richness

A) Each melodic phrares is not limited as usually in 1-1,5 octaves, but it gives the sence of freedom by expanding in to no less than whole 3 octaves!

B) The rhythmic density of the melody is in to 3 separated and not mixed areas ,the very slow, the normal , the very fast. 

E.g. very slow= whole or more and  certainly not faster that halfs , (nirvana, alpha brain waves )

Normal=1/4 quarters (normal talking, beta brain waves)

Very fast =1/16 sixteenths (furious  or crazy dance, gamma  brain waves) 

In this way one does not get bored listening while he feels free and with wide range of emotions or brain waves (gamma, beta, alpha). 

C) Besides waving around melodic centers at slower or middle parts, and creating some repetitive melodic themes patterns, there is also runs that are like sweep picking in guitar among two chords of the scale that are neighboring in other words in chromatic relation. (see post 215 )