Japanese Arrangement and MIDI Uchikomi (打ち込み, MIDI Programming) Techniques

This skill consolidates the arrangement and uchikomi (打ち込み, MIDI programming) methodology of professional Japanese composer-arrangers: guruubu (グルーブ, groove) design, realistic part-writing for each instrument, engineer-style arrangement thinking, and dance/Trap beat production.

Core creed: "Understand how real instruments are actually played, and reproduce that" — all realistic uchikomi is built on imagining the physical constraints and habits of a live performer.

For the complete parameter chains for Trap 808 and yotsu-uchi (四つ打ち, four-on-the-floor) dance tracks, see beatmaking-reference.md in this directory.

I. Guruubu (Groove) Principles and Parameters

1. The Six Adjustable Parameters That Constitute Groove

The groove spectrum: left end = ochitsuita kanji (落ち着いた感じ, calm and gentle), right end = kouyoukan / nori no yosa (高揚感・ノリの良さ, uplift and infectious feel).