THE 2-DIMENSIONAL SEQUENTIAL-CONTINUOUS OVERTONES+SLIDING IMPROVISATION MODE FOR TROMBONES
In this improvisation mode, we shift from center-note to center-note in the improvisation not directly by a jump but sequentially through vertical shift-Jump (slur) in the overtones and correction by sliding the slide.
As we have mentioned elesewhere it is sufficient that at least 50% of the time the notes fits with the underlying chords for the result to be acceptable in listening. Thus the 49% of the time we may shift by overtones and sliding till we find a new center-note where we stay for much longer time.
It may be a non-thinking experimental method without realizing which notes we play.
We may start the shift for the desired direction either vertically by overtones jumps or horizontally by sliding the slide.
The difference e.g. with an harp or piano or panflute is that in such improvisation we have only one dimension both geometrically and as pitch while with a trombone we have two dimensions one local geometric with the slide and one with the embouchure by overtones (partials).
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