Find your frequency.
An intentional space for sound, stillness, and exploration.
Settle into a tone. Let a little resonance unfold.
A gentle rhythm for unwinding
Fine tune your session
Separate tones for each ear. Use stereo headphones.
Listening ritual
15:00Uses your device’s selected output, including Bluetooth. If live audio is silent, choose Compatible player and tap its play button. Browsers may pause audio when your screen locks.
Compatible audio player
Preparing your sound…
Tap the play button in this bar if your browser asks for another tap. This player includes your selected instrument phrases. A browser may add a small gap when the generated audio repeats; Live uses continuous synthesis.
Let the room resonate.
Musical gestures, familiar phrases, and space to ring.
Connected notes with a gentle rise and fall, repeated with small variations.
A little variation between phrases, with room for the notes to settle.
Explore your states
Potential benefits, common associations, and the evidence behind each frequency.
Explore with context. Each mode includes a possible listening benefit or common association, plus its evidence level. A brainwave association describes measured brain activity; matching it with sound does not guarantee the same state or a healing effect.
Research & source notes · reviewed November 7, 2026
Numbers on the cards refer to the sources below. Studies use different sounds, settings, and participant groups; none validates these Lazarus presets as medical treatments.
- Normal EEG Waveforms · clinical reference. Describes brainwave bands and their associations; it does not establish benefits from matching audio frequencies.
- Binaural beats and brainwave entrainment · 2023 systematic review. Fourteen studies showed inconsistent evidence that binaural beats reliably alter brain activity as proposed.
- 10 Hz beats and attention · 2022 study, and 16 Hz beats and sustained attention · 2021 experiments. Findings vary with the task; these do not establish clinical benefits at 10.5 or 14.1 Hz.
- 40 Hz light-and-sound stimulation · 2022 human pilot. The small randomized study used synchronized flicker and sound pulses, with preliminary exploratory findings. Lazarus does not reproduce that protocol.
- 40 Hz auditory stimulation · 2026 study. A small controlled study reported selected cognitive improvements; it does not establish dementia prevention or treatment with this app.
- Music tuned to A=432 Hz · 2019 pilot. Thirty-three volunteers listened to soundtracks, not a pure 432 Hz tone; short-term findings require further study.
- Music containing 528 Hz · 2018 pilot, and 432/528 Hz music and stress markers · 2026 trial. The small pilot and later music trial measured short-term responses, not DNA repair. Music findings cannot be transferred to a standalone tone.
- Schumann resonance · UNAM geophysics, and Electromagnetic sleep-device trial · 2022. Earth resonance is electromagnetic. A trial using an electromagnetic device does not establish sleep or healing benefits from a 7.83 Hz audio beat.
- FDA ultrasound-device record, NICE guidance on selected non-union fractures, and TRUST fracture trial. Evidence depends on the condition: specialized devices may be used for selected indications, while the large fresh-tibial-fracture trial found no benefit. This is not an audio treatment.
Health disclaimer · curious sound, grounded expectations
Lazarus is for listening and sound exploration. Potential benefits describe listening intentions, common associations, or preliminary research—not proven outcomes from these presets. This app has not been clinically tested and is not intended to diagnose, treat, cure, or prevent disease, or replace medical care. No preset is proven to repair DNA, regenerate tissue or nerves, heal fractures, or treat dementia.
Brainwave frequency associations do not mean that matching audio creates the same brain state. Research on binaural beats does not automatically apply to audible pulses, and research on retuned music does not establish benefits from pure tones. Effects can vary between listeners.
1.5 MHz is ultrasound, not audible sound. This studio and ordinary speakers or headphones cannot output 1.5 MHz ultrasound. That entry is information only; it never plays. Low-frequency values elsewhere describe a beat difference or an audible pulse rate, not a sub-bass tone.
Start at a comfortable volume. Stereo binaural listening needs stereo headphones; audible pulse works with speakers. All instrument timbres and phrases are original synthesis, inspired by meditation instruments rather than recordings of a particular tradition.
Settings are saved in this browser. Live audio keeps its rhythm independently of the interface, but background playback and Bluetooth interruptions depend on your browser and device. On iPhone, open in Safari and use Compatible player if needed.
Keep the sound close.
Bring Lazarus to your Mac. Your frequency presets, listening modes and musical instrument layers are included for offline listening.
- Fully offline
- Continuous native audio
- Musical phrases & independent mixes
Apple SiliconmacOS 12 or later
Intel MacmacOS 13 or later
Tested on Apple Silicon. Intel and older macOS versions have not been device-tested.
- Open the downloaded disk image.
- Drag Lazarus Frequency Studio into Applications.
- Open Lazarus from Applications and start listening.
Updating? Quit the old app first. Your saved settings are kept.
This build is not Apple-notarized. If macOS blocks it, review the warning, then use System Settings → Privacy & Security → Open Anyway. Apple’s opening instructions
Installation & listening guide