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
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).
