Reference

Tuning Data

This page gathers Hans Cousto’s Hans Cousto — Tuning Data / Sun Earth Moon Planets into a single working reference. Each row shows the cited tone with concert pitch, cent deviation, tempo, pendulum, and octave color.

Methodology

Synodic and sidereal cycles are listed separately.

Concert pitch shows the A4 value that places the listed tone exactly on the named equal-tempered note.

Tempo and pendulum values come from the first octave below the audible tone that lands in a playable pulse range at or below 120 BPM.

Source: Hans Cousto — Tuning Data / Sun Earth Moon Planets. License: CC BY-NC-ND 4.0. Pluto is shown at 140.64 Hz, with the earlier 140.25 Hz value retained in the source notes where relevant.

Earth

Rotation, year, and long-cycle Earth tunings.

Reference	Period	Audible Tone	Note	Concert A	Δ to 440	Tempo	Pendulum	Color
Earth — Synodic Day	1 day (86,400 seconds)	194.18 Hz	G	435.90 Hz	-16.10¢	91.02 BPM	10.8 cm	702 nm
Earth — Sidereal Day	86,164.09054 seconds	194.71 Hz	G	437.12 Hz	-11.40¢	91.27 BPM	10.7 cm	700 nm
Earth — Tropical Year	31,556,925.9747 seconds (365.2422 days)	136.10 Hz	C#	432.10 Hz	-31.38¢	63.80 BPM	22.0 cm	501 nm
Earth — Platonic Year	25,920 years	172.06 Hz	F	433.56 Hz	-25.51¢	80.65 BPM	13.8 cm	396 nm

Moon

Lunar cycles from the synodic month to nodal and eclipse periods.

Reference	Period	Audible Tone	Note	Concert A	Δ to 440	Tempo	Pendulum	Color
Moon — Synodic Month	29.530588 days	210.42 Hz	G#	445.86 Hz	+22.91¢	98.63 BPM	9.2 cm	648 nm
Moon — Sidereal Month	27.321661 days	227.43 Hz	Bb (A#)	429.33 Hz	-42.49¢	106.61 BPM	7.9 cm	599 nm
Moon — Culmination Period	24 hours, 50 minutes, 28.33 seconds	187.61 Hz	F#	446.20 Hz	+24.24¢	87.94 BPM	11.6 cm	727 nm
Moon — Node Circulation	6,793 days, 9 hours, 29 minutes	234.16 Hz	Bb (A#)	442.03 Hz	+7.98¢	109.76 BPM	7.4 cm	582 nm
Moon — Saros Period	6,585 days, 7 hours, 42 minutes, 24.4 seconds	241.56 Hz	B	430.41 Hz	-38.17¢	113.23 BPM	7.0 cm	564 nm
Moon — Apsides Rotation	3,232 days, 16 hours, 27 minutes	246.04 Hz	B	438.39 Hz	-6.34¢	115.33 BPM	6.7 cm	554 nm
Moon — Metonic Cycle	235 synodic months	229.22 Hz	Bb (A#)	432.71 Hz	-28.91¢	107.45 BPM	7.7 cm	595 nm

Planets

Orbital tones for Mercury through Pluto.

Reference	Period	Audible Tone	Note	Concert A	Δ to 440	Tempo	Pendulum	Color
Mercury — Sidereal Solar Orbit	87.969 days	141.27 Hz	C#	448.51 Hz	+33.17¢	66.22 BPM	20.4 cm	483 nm
Venus — Sidereal Solar Orbit	224.7008 days	221.23 Hz	A	442.46 Hz	+9.64¢	103.70 BPM	8.3 cm	616 nm
Mars — Sidereal Solar Orbit	686.98 days	144.72 Hz	D	433.67 Hz	-25.07¢	67.84 BPM	19.4 cm	471 nm
Jupiter — Sidereal Solar Orbit	4,332.59 days	183.58 Hz	F#	436.62 Hz	-13.34¢	86.05 BPM	12.1 cm	743 nm
Saturn — Sidereal Solar Orbit	10,759.22 days	147.85 Hz	D	443.04 Hz	+11.93¢	69.30 BPM	18.6 cm	461 nm
Uranus — Sidereal Solar Orbit	30,685.93 days	207.36 Hz	G#	439.37 Hz	-2.47¢	97.20 BPM	9.5 cm	658 nm
Neptune — Sidereal Solar Orbit	60,187.64 days	211.44 Hz	G#	448.02 Hz	+31.26¢	99.11 BPM	9.1 cm	645 nm
Pluto — Sidereal Solar Orbit	90,487.277 days	140.64 Hz	C#	446.49 Hz	+25.36¢	65.92 BPM	20.6 cm	484 nm

Sun

Cousto’s solar tone, shown separately from solar rotation.

Reference	Period	Audible Tone	Note	Concert A	Δ to 440	Tempo	Pendulum	Color
Sun Tone	Original tone at octave 0: 32,312.52 Hz	126.22 Hz	B	449.80 Hz	+38.13¢	118.33 BPM	6.4 cm	540 nm