Tonify By Musestar - Transpose & Isolate Songs

Transpose, isolate & practice any song in your browser. Pitch, speed, stem isolation, EQ, loop, recorder & more — for musicians.

Tonify by Musestar — Transpose, Isolate & Practice Any Song in Your Browser Tonify is a powerful Chrome extension built for musicians. Whether you're a guitarist learning a solo, a singer practising a key change, a producer transcribing a track, or a student training your ear — Tonify gives you complete real-time control over any audio playing in your browser, including YouTube, SoundCloud, and beyond. ─── TRANSPOSE & PITCH CONTROL ─── Shift any song up or down by semitones in real time without affecting playback speed. Fine-tune beyond standard steps with the cents control for precise pitch adjustments — perfect for matching a guitar that isn't quite in standard tuning. ─── SPEED CONTROL ─── Slow down fast solos, complex riffs, and difficult vocal runs without changing pitch. Speed up for sight-reading practice. Supports 0.25× all the way to 3×. ─── STEM ISOLATION (NEW) ─── Isolate vocals and backing tracks with 2-way separation — hear just the vocals or just the instrumental. Record a clip directly from your microphone, the tab audio, or even the pitch-shifted output (the Tonify-processed version), then let the AI separate the stems. Download the isolated parts individually. 4-way separation (vocals, drums, bass, guitar/other) is coming soon. ─── CLIP RECORDER ─── Record audio from three sources: • Your microphone — capture yourself singing or playing along • Tab audio — record directly from the browser tab • Tonify output — record the pitch-shifted, speed-adjusted version Use it as a simple audio recorder or feed clips into stem isolation. ─── TIMELINE PLAYBACK ─── Set a time range on any video. When the video reaches that range, the original audio is automatically replaced by just the vocals or just the instrumental — then seamlessly switches back to the full track. Works even when the extension popup is closed. ─── BUILT-IN MIXER & EQ ─── Five-band equalizer: Bass (120 Hz), Low Mid (250 Hz), Mid (1 kHz), Hi Mid (4 kHz), Treble (12 kHz). Boost bass for a fuller sound, cut mids to bring out vocals, or dial in the perfect listening EQ. Stereo/mono toggle and left-right balance control help isolate instruments panned to one side of a recording. ─── LOOP ─── Set A and B loop points to repeat any section of a song. Set a fixed repeat count or loop infinitely. Perfect for drilling difficult passages, building muscle memory, and improving timing. ─── SETTINGS MEMORY ─── Tonify remembers your pitch, speed, EQ, loop, and isolation settings for up to 20 videos. Return to a YouTube video and your settings are instantly restored — no need to re-dial every time. ─── THREE UI STYLES, DARK & LIGHT ─── • Default — bold red accents on deep dark, or green accents on light • Classic — warm piano-lounge beige, dark and light • Ghost — minimal glassy monochrome, dark and light Built for guitarists, singers, producers, music teachers, music students, and anyone who learns songs by ear. Tonify turns your browser into a flexible, focused music practice environment.