The Native-Copper Kangaroo

The Native-copper Kangaroo is a devotional form of music directed toward the worship of Awivi the Intrinsic originating in The Civilian Nettles. The rules of the form are applied by composers to produce individual pieces of music which can be performed. The music is played on a aritheyini, two izolideca and a ewera. The musical voices bring melody, counterpoint and rhythm. The entire performance is to start loud then be immediately soft. The melody and counterpoint both have phrases of varied length throughout the form. It is performed in the imaretha rhythm. Throughout, when possible, composers and performers are to play rapid runs.

• Each izolideca always does the main melody and plays staccato.
• The Native-copper Kangaroo has a well-defined multi-passage structure: an introduction and a chorus and a lengthy verse all repeated one times.
• The introduction is voiced by the melody of the izolideca and the rhythm of the aritheyini. The passage should be passionate and is very slow. Each of the izolideca ranges from the watery low register to the fragile high register and the aritheyini covers its entire range from the slicing low register to the strained high register. This passage features only melodic tones and intervals. The passage is performed without preference for a scale.
• The chorus is voiced by the melody of the aritheyini, the melody of the izolideca and the melody of the ewera. The passage should feel playful and accelerates as it proceeds. The aritheyini covers its entire range from the slicing low register to the strained high register, each of the izolideca covers its entire range from the watery low register to the nasal top register and the ewera stays in the dull high register. Chords are packed close together in dense clusters in this passage. The passage is performed using the ebalo scale.
• The verse is voiced by the melody of the izolideca, the counterpoint of the aritheyini and the rhythm of the ewera. The passage should bring a sense of motion and slows and broadens. Each of the izolideca ranges from the fragile high register to the nasal top register, the aritheyini stays in the slicing low register and the ewera covers its entire range from the resonant low register to the dull high register. This passage features only melodic tones and intervals. The passage is performed using the ebecari scale.
• Scales are constructed from twenty-four notes spaced evenly throughout the octave. The tonic note is a fixed tone passed from teacher to student.
• The ebalo heptatonic scale is thought of as two disjoint chords spanning two perfect fourths. These chords are named iwarivuli and izeli.
• The iwarivuli tetrachord is the 1st, the 3rd, the 9th and the 11th degrees of the quartertone octave scale.
• The izeli tetrachord is the 15th, the 19th, the 24th and the 25th (completing the octave) degrees of the quartertone octave scale.
• The ebecari heptatonic scale is thought of as two disjoint chords spanning two perfect fourths. These chords are named ucame and bone.
• The ucame tetrachord is the 1st, the 4th, the 6th and the 11th degrees of the quartertone octave scale.
• The bone tetrachord is the 15th, the 16th, the 20th and the 25th (completing the octave) degrees of the quartertone octave scale.
• The imaretha rhythm is made from two patterns: the ocaquica (considered the primary) and the omarime. The patterns are to be played over the same period of time, concluding together regardless of beat number.
• The ocaquica rhythm is a single line with sixteen beats divided into eight bars in a 2-2-2-2-2-2-2-2 pattern. The beats are named slothepanine (spoken slo) and feri (fe). The beat is stressed as follows:
• | - x | x x | x x | x'x | x'x | x'x'| - x | x - |
• where ' marks a beat as late, x is a beat, - is silent and | indicates a bar.
• The omarime rhythm is a single line with thirty-two beats divided into six bars in a 6-4-5-3-5-9 pattern. The beat is stressed as follows:
• | x - - - - x | x - - - | x - - x x | x x x'| x x - - x | x x x x x - x x - |
• where ' marks a beat as late, x is a beat, - is silent and | indicates a bar.

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