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Music ReTuner™ is a music retuning browser extension developed by SYQEL INC. It aims to retune audio playing on the web versions of YouTube, YouTube Music, Apple Music, and Spotify to 432 Hz, Solfeggio frequencies, or a custom A4 frequency in real time. It's worth noting that there is no indication of it using generative AI or machine learning models, so it is more accurately described as an audio processing tool rather than a typical AI application.
The product intercepts the audio stream at the browser level and applies real-time pitch-shifting/playback-rate algorithms. After installing the extension, users simply play a song on a supported music website and select the target frequency from the pop-up. Presets include 174, 285, 396, 417, 432, 528, 639, 741, 852, and 963 Hz, and it also supports a custom A4 range of 200–700 Hz. It covers Chrome, Brave, Edge, Firefox, and Safari, with support for Safari iOS and Firefox Android, but it does not support native mobile apps for YouTube, Apple Music, and Spotify.
Monthly plans include Personal (1 device) at $4.99/month, Couples (2 devices) at $9.99/month, and Family (6 devices) at $19.99/month; the page also mentions annual and lifetime plans, but does not disclose the exact pricing. Payment methods are comprehensive, supporting credit cards, Apple Pay, Google Pay, Cash App, and PayPal; Safari users can pay through the App Store. Regarding privacy, the website states that it does not track or store personal data, browsing history, or audio content, nor does it interact with user accounts, login statuses, or playlists.
Pros include easy installation, cross-platform support for major web music services, and no need to convert files one by one, making it suitable for non-professional users to quickly try out different frequencies. Limitations are also clear: it achieves retuning by altering the playback rate, meaning pitch and speed change together; live streams are not currently supported; YouTube Shorts performance may be unstable; and it may conflict with other audio enhancement extensions. As for the effects of "healing frequencies," the claims primarily stem from the product's assertions and user perceptions, lacking objective verification.
It is suitable for users interested in 432 Hz, Solfeggio, meditation, or sound healing listening experiences, as well as those who don't want to manually convert music files. Users in mainland China should note that the core functionality relies on the web versions of YouTube, Spotify, and Apple Music, as well as overseas payment methods/app stores, so actual access may be partially restricted; alternative solutions include local audio editing software, player pitch-shifting plugins, or general pitch-adjustment extensions.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on musicretuner.com official site.
musicretuner.com is an Unknown AI Apps provider. TG4G tracks its product information, with monthly pricing from $4.99, an overall rating of 6.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach musicretuner.com directly.