Sound Example: 1 Morgen (Excerpt) CD includes 24 page booklet explaining the Tonal Partials idea along with tonal systems.
This piece is in Pure Tone temperament all through. The idea comes from drum and shawm bands found all over Southeast Asia, like the panchen baja (lit. five instruments) of the Newari in Nepal or the phi pha bands of Thailand, as e.g. played during kick boxing events. Still the piece omits the drums as they would disturb the overtone series. These bands have a shawm, an oboe-like instrument which plays very fast and elaborated melodies repeated all over. Therefore, a never-ending melody is heard which, after listening for a while, produces a very lively feeling.
Here the tonal system used is a mixture between the pure tone, from second to fifth, and an equal tuning of the sixth and seventh. The idea was to have an ambient sounding piece, different from Morgen, which is melody based. The piece mixes pedal-like chords with bursting clusters. The overtone content of the tonal system used is built in such a way that always all tones of the tonal system are played, although in constantly changing registers and amplitudes. Therefore, the ambience is not only produced by the pedal chords but also by the presence of the whole tonal system throughout the piece. When playing single sounds with a keyboard or the like, when pressing only one key no single pitch event is heard, the sounds produced are more timbre melodies. This needs some time to get used to, still then the effect is amazing. Also, as the algorithm tries to fit incoming MIDI events onto the tonal system, when playing chromatically up or down, this timbre melodies may change not always slightly but sometimes have unexpected jumps. There the Plug-In behaves as if it would play along a bit.
Here again a tonal system as a mixture of pure and equal temperament is used. The piece is a solo improvisation played on a MIDI guitar. The idea was based on minimal music like that of Steve Reich or Philip Glass, again inspired by Uganda amadinda xylophone music or by Javanese or Balinese gamelan pieces. A sparse overtone structure is used, therefore clear pitches can be heard.
A pure tone system is used here with many tones of the system appearing with each note event, although not very dense. The idea of this piece is a spatial one, please listen in a stereo setup. Then you may hear the melodies moving very fast from left to right or the other way back. The melodies used here are therefore short and do not have a sing-along quality to keep the focus on the stereo effect.
To meet this, the tonal system used is 0, 20, 495, 704, 798, 900, 1100 cent. There is a fast beating between 0 and 20 cent which clearly appears right at the beginning. Then all over the piece the whole tonal system is always heard.
The tonal system used in this piece is the same was with March the mad scientist. Still here only a few pitches are played to hear the difference compared to the ambient, rhythmical use of the system.
The basic tonal system used here is inspired by the maqam Husseini of classical Perian music, which has a bajati tetrachord with a neutral second and minor third and a tetrachord rast with a neutral third. Additionally, a major seventh is added, a flavor known from tetrachord hijaz. Then the system used is 0, 150, 316, 498, 702, 850, 1100 cent. Still a maqam is more than just a tonal system, it is a couple of phrases and forms. Also the neutral second and third intervals are not always met perfectly, as is the case here. Additionally, the tonal system in maqam music is not used for chord playing. You may judge yourself how much "persian" flavor is left in this piece. Most Western ears will try to correct the pitches to known intervals, major or minor, and might find those in this piece heavily out of tune then.
This piece is in pure tone temperament throughout.
Of course the tonal system can be composed out of partials very close in pitch to produce beatings. Here, a semitone is divided by eight partials, so the system is 0, 8, 15, 25, 33, 42, 50, 58, 67, 75, 83, 92. cent Although the differences in cent are always the same, within the precision of integer values, their frequency differences are not, as the frequency scale is logarithmic. So many different beating frequencies are produced. The piece plays one MIDI note only to produce the basic sound heard throughout the piece. The fade-ins are additional pitches, each only consisting of one of the partials.
The tonal system is again a mixture of pure tone and equal temperament as used with Weihnachten.
This tonal system is built of 0, 80, 360, 498, 710, 790, 1040 cent. It was just invented from scratch to meet the piece with some "tonal distortion".
This piece is again in pure tone temperament. Still all tones are played in low volume in the back throughout the piece. So when striking a single key on the keyboard or MIDI guitar, one clear pitch with a whole tonal system in the back is played, also a quite amazing solo sound.

1 Morgen

2 Kent

3 Weihnachten

4 Frei

5 March the mad scientist

6 Verweilen

7 Labial 8 Weiden
9 Wandeln
10 Harmonic 2
11 Chrom
12 Warteliste