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BEHOLD: HZP, the revolutionary music app that unlocks ancient powers of sound healing for any song, using on any device.

Watch a 9 minute video & learn how you can listen to an song in any Solfeggio Frequency without wasting time searching for music, converting MP3 files or being disrupted by ads. 

A message from the inventor:

Since we began selling HZP in 2021, I have been asked many times how this revolutionary and magical technology works. HZP contains patent-pending breakthroughs in software design & user experience. Below you will find a collection of the most common questions and areas of interests people like you have inquired about.

Yoav Shalev, CEO, Founder, SYQEL INC

What does HZP mean?

HZP is short for Hertz Player. At it’s core – the music player’s patent pending feature is it’s ability to change any piece of music that was recorded at 440 Hz A4 (Universal Concert Standard Tuning) and output it at any Solfeggio Frequency tuning without manipulating the file, converting it or creating any sort of duplication for the file. The application magically adjusts the output frequency of the music track being played in real time, without delay and without any loss in audio quality.

Who can benefit the most out of using HZP?

HZP was built first and foremost to serve people like you, who are “in-the-know” about the healing powers of sound, energies and vibrations. The Solfeggio Frequencies are believed to hold various mental, physical and spiritual benefits, impacting ones mind, body & soul.

Whether you are looking for music that can help you relieve stress, improve your sleep, accompany your mediation as you work towards your next life goal, HZP will be right there with you, wherever you go.

What output frequencies can I listen to with HZP?

HZP includes all of the Solfeggio Frequencies AND the magical frequency of 432Hz.
174Hz – Relieving Pain and Stress
285Hz – Healing Tissue and Organs
396Hz – Liberating Fear & Guilt
417Hz – Wipes out Negativity
432Hz – Miracle Tone of Nature
440Hz – Universal Standard
528Hz – Repairs DNA
639Hz – Brings Love
741Hz – Detoxifies Cells
852Hz – Awakens Intuition
963Hz – Connects to Higher Self

How does HZP work?

The HZP music app includes the ability to playback your own MP3 music files AND/OR music provided from the Audius streaming catalog. At its core you have the option to search for songs, create playlists, playback songs and update the selection of the output frequency in real time.

What features does HZP include?

HZP comes loaded with standard and premium features including but not limited to:

    • Music Playback Mode (Shuffle, Repeat Once, Repeat All)
    • Casting to speakers and headphones over Bluetooth
    • Playlist creation & Management
    • Favorite songs playlist
    • Genre Filter
    • Sort by Name & Duration
    • SYQEL Music Visualizer
    • Sleep timer
    • List / Card view options
    • Light and Dark Themes

On what platforms can I install HZP?

HZP is available across all major operating systems and device types. You can use the same HZP on all of your devices. Your settings and playlist will automatically sync between devices.
HZP is available to download on the following platforms:

Our roadmap includes integrating HZP with the following environments & technologies:

    • Apple’s Siri voice Assistant
    • Apple CarPlay
    • Apple TV
    • Google Assistant
    • Android Auto
    • Android TV
    • Sonos s
    • Smart speakers (Sonos, Google Mini, Alexa Echo, among others)
    • Various TV platforms such as Roku, Amazon Fire, Vizio, LG, Samsung, among others.

Can I use my own mp3’s with HZP?

Absolutely! Importing your library of music into HZP is simple and fast. Just select the folders you would like to add and HZP will do the rest!

Does HZP change my mp3 files?

NO! HZP does not manipulate or convert any file whatsoever.

How much does HZP cost?

At it’s core – HZP is offered 100% FREE. You can use HZP to playback all of your songs and stream over 1M songs with no ads. The only feature we charge for are the frequency changing capability.

While we realize that our technology can save you hundreds of hours in converting files, we also wanted to make it as affordable as possible so that every person can enjoy the sound healing powers of the Solfeggio Frequencies. That’s why we choose to introduce HZP Amplify subscription plan for only $8.99 per month, or $79.99 per year (save 25%) compared to paying monthly.

The HZP Amplify subscription plan unlocks your ability to change the frequency of your music as many times as you want, and will also remove the watermark from the visualizer so that you can enjoy a fully immersive visualized music experience.

What special benefits does a paid subscription provide me?

When you have a paid HZP subscription you have the ability to play any piece of music (that you own or that is available on the Audius catalog), in any Solfeggio Frequency, on any device you wish.

Is there a contract?

No! While we do cannot offer refunds we do not bind you to any contract. Any subscription cancellation will end at the renewal date and no additional charges will be drawn for your account.

BONUS #1 – Find your frequency – a $150 value – 100% FREE

Navigate to our online frequency finder page here: then, click on the play button. Once the pure tone begins playing click on the 440Hz button at the top and change the frequency from the pop up menu. It is best experienced with high quality speakers or headphones. Be sure to allow each frequency to play 3-4 seconds before moving on to the next one. You may redo this test as many times as you’d like!

Bonus #2 – 7 day free trial!

Signing up today is 100% risk free. You can try the service 100% for free – no credit card required. At the end of the 7 day period access to the frequency changing feature will be restricted. If you would like to continue using this feature you will need to subscribe to the monthly or annual Amplify plan. Otherwise you can continue to enjoy all other functionality of the media player – 100% FREE!

How do I get started?

Signing up to HZP is simple:

    1. Visit
    2. Sign up with Google, Apple or your email and a password
    3. Enjoy the service!

Where can I learn more about how to use HZP?

You can visit our Quick Start Guide and Knowledge Base

Where can I read reviews by HZP users?

We encourage users to leave reviews on our website, Facebook, Google Play & Apple App stores. You can find user reviews and the links to the relevant pages on our Reviews page.

I have a question that was not answered on this page, how can I contact you?

You can email us by filling out the contact form on our contact page, or sending a message to