Technique of playing - programs


1) Transposition

Melodic sequences can be transposed into other keys by changing the basic tone
- you can choose this basic tone by pressing the button underneath the corresponding key.
In this way, the whole manual will be adapted to the new basic tone.


2) Oktaves, links and mixtures

To add the octave tone it is only necessary to press the button underneath the octave tone in the upper manual and to connect it by a link with the first manual. If you choose another basic tone in the upper manual the manual will be transposed in a similar way. A link to the lower manual results in bitonal playing.

a.octave link

b.bitonal link (combination of diverse basic tones and their harmonies)


3) Swift alteration of octaves, sound correction and sound intensification

For swift alteration of octaves you can use the setting wheel, whereby the tone range of the instrument will be enlarged considerably. Octave alteration upwards may change the density of combined chords (clusters) into well-tuning sound combinations; analogously you can intensify the density of sounds by octave alteration downwards to the same level.

If you change the basic tone of the lower manual into a higher position than the former basic tone, the entire harmony will undergo a complete change. Such operations offer you endless opportunities to immediately create harmonies of great emotional tension - you may call it "dissonant" -simply by a click.



Completely unexpected sound effects can be achieved by adding pre-programmed mixtures. A special display assists you in this operation. Putting in the arithmetic distances in a harmonic scale - e.g. the input "3-3-2" results in an enlargement of the pitch with the corresponding overtones - so that scales will automatically widen into chains:


entire sound




Combination of Mixtures

You can combine similar and unequal mixtures as well. They all result in very complex chord-mixtures as demonstrated in the following example:

lower manual: basic tone (1), mixture 3-3-4
upper manual: fifth (3), mixture 2-3-3.
By hitting the violet key (nature tone 8) you will hear a cord like that:

And you may transpose it to all other pitches in the same way.

5) Untertone Series

A simple switch enables the transformation from overtone- to undertone series. The use of undertone scales in music seems to be unheard-of, but it is not difficult to handle them in the same way as overtone scales. Undertone series too are harmonies - and you may recognise the minor chords in those series; - however, the "minor" character is present in the entire scale of undertones, not only in the minor triad.


Optical sign:
Basically you will use the same keyboard for overtone- and undertone scales. To make the difference visible, it is only necessary to change two coloured keys: in the undertone system the nature seventh (green key) will take the place of the overtone (nature) third (blue), and vice versa, the "under"-third takes the place of the nature seventh. Prime and octave (violet) and fifth (red) remain in the same colour. But notice: the fifth of an overtone scale is defined upwards, the undertone fifth is placed as a fifth downwards.

6) Overtone / Undertone Combinations

You can combine undertone chords like overtone chords, and in the same way you can link up two undertone scales.
The combination of undertone series and overtone series is a completely new experience with amazing results:
It is possible to create sounds full of emotional tension, but without biting harshness, especially by using the same basic tone (remember: since undertone series are descending, the basic tone - in contrast to overtones - is now on top!)
Other combinations may gain in sharpness and dissonance.