Preset group · Notes · A=432
Notes at A = 432. The A that breathes with the body.
For many traditions, 432 Hz is the natural tuning: the A that breathes with the body. In Cymatica it's called The One. This group is the twelve notes of the middle octave tuned from that A, from C4 to B4.
A lot of people feel 432 as warmer and pick it to meditate and rest. Put it next to the 440 group and hear the difference.
The formulas and the figures in the code.
The same formula as with 440, with a different A: frequency = 432 · 2^((i − 9)/12), with i from 0 (C4) to 11 (B4). C4 plays at 256.869 Hz, A4 at 432 Hz and B4 at 484.904 Hz. Measured against A = 440, A4 at 432 Hz sits at A4 -32 cents: every note drops by the same amount.
That's 12 pure tones, with no ratio or layer. In XY they're drawn against A 432 if the app is set to A = 432.
One line per preset.
- C4 · 256.87 Hz
256.87 Hz
C4, middle C, where the octave starts, at A = 432.
Physical figure (6, 4) + (6, 2) · No layer
- C#4 · 272.14 Hz
272.14 Hz
C#4, a semitone above C, at A = 432.
Physical figure (6, 4) · No layer
- D4 · 288.33 Hz
288.33 Hz
D4, a whole tone above C, at A = 432.
Physical figure (6, 4) · No layer
- D#4 · 305.47 Hz
305.47 Hz
D#4, a minor third above C, at A = 432.
Physical figure (6, 4) · No layer
- E4 · 323.63 Hz
323.63 Hz
E4, a major third above C, at A = 432.
Physical figure (6, 4) + (8, 2) · No layer
- F4 · 342.88 Hz
342.88 Hz
F4, a fourth above C, at A = 432.
Physical figure (8, 0) · No layer
- F#4 · 363.27 Hz
363.27 Hz
F#4, the tritone, half the octave, at A = 432.
Physical figure (8, 2) · No layer
- G4 · 384.87 Hz
384.87 Hz
G4, a fifth above C, at A = 432.
Physical figure (8, 2) · No layer
- G#4 · 407.75 Hz
407.75 Hz
G#4, a minor sixth above C, at A = 432.
Physical figure (6, 6) + (8, 2) · No layer
- A4 · 432.00 Hz
432 Hz
A4 at 432 Hz, The One.
Physical figure (8, 4) · No layer
- A#4 · 457.69 Hz
457.69 Hz
A#4, a minor seventh above C, at A = 432.
Physical figure (8, 4) · No layer
- B4 · 484.90 Hz
484.9 Hz
B4, a major seventh above C, the last in the octave, at A = 432.
Physical figure (8, 4) + (8, 6) · No layer
Tab. 01 · Plate figure calculated by the app's core (cym.core.js) for each frequency: a square plate driven at the center, f = 5.5·(n² + m²) Hz. Two modes = the plate answers with both.
The physical figure and the symbolic layer.
In Chladni, C4 draws a blend of modes (6, 4) and (6, 2) and A4 mode (8, 4). A third of a semitone shifts the lines a little: compare A4 at 440 and at 432 and you see it live.
No layer: it's the plate alone.
What people ask about this group.
Q1What is 432 Hz tuning?
Tuning with the middle A at 432 Hz instead of 440. Many traditions call it natural: if C is 256 Hz, a power of 2, and you tune with pure fifths, A comes out at exactly 432 Hz.
Q2How much does it change compared with 440?
About 32 cents, less than a third of a semitone. You can hear it if you play the two tones one after the other.
Q3Can I play at 432 with MIDI?
Yes. The app's MIDI input follows whichever tuning you pick, 440 or 432.