Solemn Sunday Soundtrack – An AudAI™ Soundscape

Wordless Hymns in F

AI Process/Open Source Software: HUMAN, Google Flow Music (Lyria 3.5), Claude.ai, ChatGPT, Perchance.org – DAW: Audacity 4 (alpha), OS: Linux (Ubuntu 26.04)

Solemn Sunday Soundtrack – Full Mix + 6 Hz Binaural Beat (77 Tracks – 3:44:12)

Download Free Full Mix MP3 (513.2 MB)

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Google Deep Dive Podcast: Sound as Sacred Anchor (20:08)

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Hello, and welcome. I’m JJ, the sound designer behind this soundscape. Here’s what you’re about to hear and how to get the most from it.

Put on headphones.
Hidden underneath the music is a very quiet pair of tones, one in each ear, set slightly apart from each other. Your brain blends them into a slow, gentle pulse, six beats per second, called a binaural beat. It only works with headphones, since speakers mix the two ears together and the effect disappears. If you listen on speakers, you’ll still get the music, just without that extra layer.

Keep it quiet.
This is meant to sit softly in the room, not fill it. Turn it down lower than you think you need, then a little lower.

What you won’t hear.
There are no drums, no beat, no vocals, no melody to hum along to, and no sudden moments. Nothing starts with a bang or builds to a climax. Every sound fades in and out so gently that you may not notice exactly when it arrived.

What you will hear.
One low note, an F, hums beneath everything from the first second to the last. It never stops and never changes. Over it, soft pads, bowed strings, a breathy flute, glass harmonica, and harmonium drift slowly through warm, open chords. Every so often a shadow of something more wistful passes through, then the warmth returns. It’s meant to feel sacred without belonging to any one tradition.

How to listen.
However you like. Sit, lie down, read, pray, think, nap, or do nothing at all. There’s no right way and nothing to follow. If your mind wanders, let it. The music will be right where you left it.

A word about expectations.
I designed this for rest and reflection, and I find it calming. But I’m a sound designer, not a doctor, and the research on binaural beats is mixed. Treat this as music with a gentle atmosphere, not as a treatment for anything.

About the number.
Yes, there are 77 tracks.

I know.

As a recovering Catholic who keeps falling off the agnostic wagon, I apparently have more reverence in me than I’d like to admit.

The devil made me do it.

Find a quiet corner, put your headphones on, and let the F hum.

Rest Well,
JJ, Sound Designer

The Deepest Dive – JJ’s Production Notes

Binaural Beat: 6 Hz (Theta)

Theta (4-7 Hz) is the band most associated with deep relaxation, contemplation, and a hypnagogic, drifting-but-aware state. 6 Hz sits at the upper end of theta and is associated with relaxed, drifting awareness, which suits “rest and reflection.”

Carrier Frequencies (A=440 Hz Tuning)

• Left ear: 174.61 Hz (F3)
• Right ear: 180.61 Hz
• Difference: 6 Hz

Binaural beats work best with carriers below roughly 1000 Hz, and the lower-to-mid range (around 100-250 Hz) tends to be the most comfortable and pronounced. These carriers are warm and low, easy on the ears over long listening, and the beat is clearly perceptible.

The left carrier sits exactly on F3, so it is consonant with the music’s tonic. The right carrier is offset by +6 Hz, about 59 cents sharp of F3.

A Note on the Offset

Any F in the music reaches both ears, so the right ear will hear a real, audible 6 Hz amplitude wobble between the carrier and the drone, on top of the binaural beat. At low carrier levels this reads as gentle shimmer, but it is a true acoustic effect, not just something perceived in the brain.

Building the Music

• Key: F major. Plain F major is warm and grounded.
• Drone on F under everything, reinforcing the carrier as the tonic.
• Instrumentation: sustained pads, soft bowed strings, felt piano, singing bowls tuned near F, and sparse harp or kalimba.
• Tempo: free or very slow. At 60 BPM the pulse is 1 Hz, so the 6 Hz beat is exactly six times that rate. This relationship only holds at 60 BPM, and since the binaural beat is perceived internally rather than as an audible pulse, it’s a nice-to-have, not a requirement.
• Tuning reference: All pitch values assume A=440 Hz. If the virtual instruments or singing-bowl samples are tuned differently (A=432, for example), their F won’t match 174.61 Hz, so that required confirmation before building around it.

Practical Mixing Process

• The carrier tones are kept low in the mix, roughly 15-25 dB below the music, so the music leads.
• Sine waves used for the carriers, with slow fade-ins and fade-outs.
• Binaural beats need headphones; noted that in the project description.
• A pure sine can get fatiguing, so blending the carriers into a pad’s sustained F makes it feel like part of the harmony.

A Note on Expectations

Research on binaural beats is mixed. Some studies show modest effects on relaxation and anxiety, while others show little beyond what calming music alone provides. That doesn’t diminish the project’s value, since the combined atmosphere is what makes it work, but I avoid making strong health claims regarding the physiological effects, which vary listener to listener.

Main Text to Music (Album-Wide) Prompt

Create a seamless, continuous, entirely instrumental ambient soundscape for
rest and reflection. Play it in F major over a constant, unwavering low F
drone (F3) that never stops and never changes pitch. Make it serene and
sacred in feeling, without belonging to any one tradition. Keep it warm,
spacious, unhurried, and gently luminous.

Do not write a melody. Use only slow, sustained tones and very slow chord
changes over the F pedal point, drawing mainly on F, Bb, C, and Gsus2
colors. Touch on D minor only as a brief, passing color, never as a
sustained or dominant harmony, and always return to major warmth. Keep the
harmony diatonic and consonant, with no sharp dissonance.

Use soft synth pads with 3-5 second attacks and long releases, a sustained
low F drone, bowed cello and viola with long, blended bow changes, breathy
alto flute with soft onsets, bowed vibraphone, glass harmonica, harmonium,
and delicate bowed string harmonics. Make roughly 65% of the sound synth pad
and drone, and 35% soft acoustic color.

Use no tempo, no meter, and no pulse. Let the music evolve in slow swells of
30-60 seconds, fading every note in and out so none has an audible front
edge. Use a wide stereo field and a smooth, long, diffuse reverb tail. Keep
dynamics quiet and even, the mix soft and low in volume, and the high
frequencies smooth and rounded, with nothing sharp or bright.

Do not include drums, percussion, beats, rhythm, pulse, ticks, clicks,
plucked notes, piano, harp, kalimba, bells, chimes, singing bowls,
arpeggios, repeated figures, ostinato, tremolo, heavy vibrato, rhythmic
delay or echo, sidechain pumping, vocals, choir, humming, spoken word,
field recordings, nature sounds, crescendos to a climax, key changes,
modulation, sustained minor-key sections, sad or gloomy mood, dissonance,
distortion, or sharp transients.

Make an instrumental ambient drone in F major over a constant low F pedal
(F3). Use soft synth pads, bowed cello, breathy alto flute, glass harmonica,
and harmonium. Mostly major harmony, minor only as a brief passing color.
No percussion, rhythm, or vocals. Slow swells, long reverb, serene, sacred,
warm, quiet.