Solfeggio Retuner Pro

Retune YouTube and Apple Music to 432 Hz or Solfeggio tunings in real time (Pro studio license).

Solfeggio Re-Tuner Pro is a professional browser extension that retunes audio playback in real time on supported music streaming websites. It allows you to adjust playback frequency while music is playing, using a simple on-page control — without downloading or modifying audio files. Designed for studios, facilitators, and professional listening environments, Solfeggio Re-Tuner Pro works with your existing playlists and streaming workflow. Key features • Real-time audio retuning during playback • Works with YouTube, YouTube Music, and Apple Music • Simple on-page frequency selector • No audio file downloads or conversions • Consistent tuning across sessions • Professional license-based access Privacy & data usage • No tracking or analytics • No collection of browsing history • No personal data collected • License validation only (for activation purposes) All functionality is contained within the extension. No remote code is executed. Supported sites • youtube.com • music.youtube.com • music.apple.com