417 Hz · Patent-Protected · US 11,836,330
Retune Your Music To 417 Hz
The frequency of change, momentum, and clean breaks.
See it work
See 417 Player Plus retune music in real time
Sixty seconds. Real-time 417 Hz retune of a song you'll recognise.
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Why 417 Player Plus
Built for people who own their music — and want to hear it differently.
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Sacral-Chakra Tone
The second canonical solfeggio frequency — traditionally associated with the sacral chakra and the dynamics of change.
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Movement & Momentum
Listeners describe 417 Hz as kinetic where 396 Hz is settling — the tone you put on when something needs to shift.
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Working & Writing
Quietly motivating without being stimulating. Useful for working sessions where you need momentum but not adrenaline.
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Patent-Protected Retune
Real-time frequency conversion of your existing library, US Patent 11,836,330.
How it works
Real-time retuning. No re-encoding. No quality loss.
We don't make copies of your songs. We don't apply equalization or compression. We shift the pitch of the audio stream as it plays — and that's the entire trick.
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Add your music
Point 417 Player Plus at a folder on your device — MP3, FLAC, WAV and most other common formats are supported. Your files stay where they are; nothing is uploaded.
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Tap to retune
One tap and the entire library plays at 417 Hz. The original files aren't touched — the retune happens in real time on the way to your headphones.
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A/B as you go
Switch back to 440 Hz any time. Compare the same song side-by-side and decide for yourself. Set a sleep timer, build playlists, listen offline.
Why we built 417 Player Plus
417 Hz is the second tone of the canonical solfeggio hexachord — the *Re* of the medieval Italian scale — and in modern sound healing tradition it's the kinetic counterpart to the more settling 396 Hz. Where 396 is associated with release, 417 is associated with movement: facilitating change, undoing situations, finding momentum when something has been stuck. The literature describes it as the tone for clearing mental blockages and for the kind of forward motion that needs a soundtrack.
417 Player Plus exists for the same reason every app in our line exists: getting your music to a specific frequency, in real time, without re-encoding or quality loss, shouldn't require a digital audio workstation or three conversion tools. Point the app at your library. Pick 417 Hz. Listen.
The retune happens on the way to your headphones. Original files stay untouched. Switch back to 440 with one tap. Bulk-add an album to a playlist. Set a sleep timer. Listen offline. The frequency-shifting engine is covered by US Patent 11,836,330, real-time, and lossless.
Where 417 Hz tends to come into its own is during working sessions — writing, designing, problem-solving, the kind of focused work where you want momentum but not adrenaline. Listeners describe music at 417 Hz as quietly motivating — present without being stimulant-coded. Less sedating than the lower solfeggio tones, less expansive than the heart-centred 528 Hz. It's a tone that encourages forward motion.
Pricing matches the rest of the Player Plus line. Free for twenty retunes — no card, no signup. After that, $19.99 unlocks 417 Hz on your platform forever; $99.99 unlocks all ten solfeggio frequencies. No subscriptions, no ads, no tracking. We don't sell your listening data because we don't collect it.
Built and self-funded by SYQEL INC. We're a small team that prioritizes users over investors. The frequency-changing capability is patent-protected so no third party can revoke your access to it. Use 417 Hz however fits your week.
From the audience
Loved by listeners who own their music.
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"I write better at 417 Hz than at standard tuning. I can't fully explain it, but I'm not switching back."
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"Bought the all-frequencies bundle. 417 became my favourite immediately. Great for design sprints."
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"Simple, fast, no friction. Exactly what I want from a music player."
Get the app
Try free. Upgrade once.
No ads. No tracking. No subscriptions. 14-day money-back guarantee on every paid tier.
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Free trial
$0
20 retunes. No card. Just open the app and try it.
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Unlock 417 Hz
$19.99
One-time. 417 Hz unlocked forever on this platform. Add other frequencies later for $19.99 each.
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Unlock all 10
$99.99
One-time. 417 Hz plus all 9 solfeggio tunings (174, 285, 396, 417, 528, 639, 741, 852, 963).
Prefer a direct installer? Windows .exe · Mac .dmg
Patent-protected by US Patent 11,836,330 · Built and self-funded by SYQEL INC
FAQ
Quick questions
What is 417 Hz used for?
In the solfeggio tradition, 417 Hz is associated with change and momentum — facilitating shifts, undoing situations, working through mental blockages, finding forward motion. Sound healers often use it during transition work and intention-setting. Many everyday listeners gravitate to 417 Hz during creative or focused work — writing, designing, problem-solving — where the goal is steady forward motion rather than rest.
What does 417 Hz do?
In sound healing tradition, 417 Hz is treated as a tone for change — paired with sacral-chakra work, intention-setting, and the dynamics of forward motion. Whether you experience anything specific is your own to discover. Technically, 417 Player Plus retunes your music so the note G#4 sits at 417 Hz, with A4 landing around 441.74 Hz, in real time and without altering the original files.
How is 417 Hz different from 396 Hz?
Both are tones from the canonical solfeggio hexachord. 396 Hz sits at the foundation and is traditionally used for release work — letting go, fear, guilt, settling. 417 Hz is the next tone up and has a more kinetic feel — used for movement, change, and forward momentum. Many practitioners use 396 Hz to settle and 417 Hz to move.
Can I use 417 Hz while working?
A lot of our users do exactly that. 417 Hz tends to feel quietly motivating — present without being stimulating. It's a popular choice for writing sessions, design work, and other focused creative activity. Like every frequency in our line, the retune doesn't replace the music's natural energy — it just shifts the tuning reference.
Is it a one-time purchase?
Try it free for 20 retunes, then $19.99 unlocks this frequency permanently. Want all 10? $99.99 one-time. No subscriptions, ads, or tracking.
The other tunings
Looking for a different frequency?
We make a player for each tuning so you can pick the one that fits what you're after. Every app uses the same patent-protected real-time engine.