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Book: the 5comb notes-message idiom #29

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Merged
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Aug 5, 2026
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Book: the 5comb notes-message idiom #29

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db72751
Note the 5comb notes message in the comb chapters
claude Aug 5, 2026
8e429be
Correct the notes-message example to the actual major-glow voicing
claude Aug 5, 2026
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4 changes: 3 additions & 1 deletion book/src/fivecomb.md
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Expand Up @@ -43,7 +43,9 @@ position.*

### `freq1..5` and `freq` — the tuning

Per-voice frequencies (5 Hz floor, the GRM's own) plus a master multiplier
Per-voice frequencies (5 Hz floor, the GRM's own) — or the `notes`
message, which tunes up to five combs from MIDI note numbers in one list
(fractional allowed) — plus a master multiplier
(0..2) that transposes the whole bank — the master is the *performance*
control, gliding every voice proportionally so chords stay chords.

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8 changes: 6 additions & 2 deletions book/src/recipes/comb-drones.md
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Expand Up @@ -13,8 +13,12 @@ measured and explained in [five strings, no guitar](../fivecomb.md) and

## Voicings to keep

Tunings in Hz; MIDI equivalents in parentheses for orientation. (The
object speaks Hz only — keep `mtof` handy, or this table.)
Tunings in Hz; MIDI equivalents in parentheses for orientation. The
`notes` message tunes a voicing in one gesture — up to five MIDI note
numbers, fractional allowed, so just-intonation intervals land exactly
(`notes 45 52 57 60.86 64` is the major glow with its true 5/4 third at
275 Hz) — and the Hz attributes remain for exact ratios like the bell
plate.

| voicing | freq1..5 | character |
|---|---|---|
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