The Rosy Corymb

The Rosy Corymb is a form of music used during marches and military engagements originating in The Judgemental Confederation. The form guides musicians during improvised performances. A singer recites nonsensical words and sounds while the music is played on a jubbith, a xid and a xildo. The musical voices join in melody and counterpoint, harmony and rhythm. The melody and counterpoint both have mid-length phrases throughout the form. It is performed using the shudash scale and in free rhythm.

• The singer always should feel mysterious and is to become softer and softer.
• The jubbith always does the main melody, should be graceful and is to become softer and softer.
• The xid always provides the rhythm, should be lively and is to be moderately soft.
• The xildo always should be vigorous and is to be moderately loud.
• The Rosy Corymb has the following structure: a verse and a chorus all repeated one times.
• The verse is voiced by the melody of the singer reciting nonsensical words and sounds, the melody of the jubbith, the counterpoint of the xildo and the rhythm of the xid. The passage is very fast. The singer's voice stays in the middle register and the jubbith stays in the dull low register. This passage is richly layered with full chords making use of the available range. The passage should be performed using arpeggios.
• The chorus is voiced by the melody of the jubbith, the harmony of the singer reciting nonsensical words and sounds and the rhythm of the xid. The passage is moderately fast. The jubbith covers its entire range from the dull low register to the ringing high register and the singer's voice ranges from the middle register to the high register. This passage typically has some sparse chords.
• Scales are conceived of as two chords built using a division of the perfect fourth interval into eleven notes. The tonic note is fixed only at the time of performance. Preferred notes in the fundamental scale are named. The names are vuthrilsim (spoken vu, 2nd), desle (de, 4th) and pethrebinpu (pe, 11th).
• As always, the shudash heptatonic scale is thought of as two disjoint chords drawn from the fundamental division of the perfect fourth. These chords are named ohural and iquur.
• The ohural tetrachord is the 1st, the 4th, the 6th and the 11th degrees of the fundamental perfect fourth division.
• The iquur tetrachord is the 1st, the 2nd, the 8th and the 11th degrees of the fundamental perfect fourth division.

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