B Persian — Organ

B Persian carries 7 notes per octave (world family), drawn here straight onto the Organ's keys with every root pinned — no tablature in between, the keyboard is the map.

Intensely exotic — two half-step clusters (b2 against the root, b5 against the 4) and a raised 7th make it the most dramatic of the world scales. Mysterious, ornate, and tense.

Heard in: Persian and Middle-Eastern-flavored melodies, film scoring for desert and ancient settings, and exotic metal and progressive-rock riffs.

The Organ ignores touch: every key speaks at one level, so evenness here is about timing alone — the maps and the audio keep that honest.