Practice your part.
Mute the drums and play along. Sing over the band.
Slow the bridge until it’s locked in.
Works in any browser. No download. No setup.
Real stems. Real-time. Right in your browser.
Click any stem to solo or mute. Drag the waveform to seek. This is the actual mixer, running on a real song right in your browser.
Three steps. No setup, no downloads.
Pick a song
Browse 600+ heavy tracks. Search by artist or title. Find your jam.
Open the mixer
Stems load in your browser. No app, no plugins. Just a play button.
Mute, loop, slow it down
Solo the part you're learning. Loop the chorus until it's locked in.
Built for how musicians actually practice.
Isolate any stem
Mute drums to play along. Solo vocals to harmonize. Hear each part on its own.
Loop the hard part
Drag-set A↔B markers. Repeat the bridge until your fingers know it.
Slow without pitch loss
60% speed, same key. Learn at your tempo, perform at theirs.
Click track at the BPM
Auto-detected per song. Mix it in, mix it out. Practice in time.
Pitch shift
Drop a song into your vocal range. ±12 semitones, tempo preserved.
Request any song
Submit a track. We process and add it within 48 hours.
Mute the vocals. Take the mic. See how close you got.
Record your take over the isolated backing and get a real, line-by-line pitch score. Lyrics scroll in time as you sing, and every song has a leaderboard — climb the weekly challenge.
- Line-by-line pitch scoring
- Synced, scrolling lyrics
- Weekly leaderboard challenge
Rock and metal. Curated by hand.
Classic Rock, Heavy Metal, Hard Rock, Nu-Metal, Metalcore / Modern Metal, Post-Grunge, Pop-Punk, Alt Rock / Grunge. Eight genres, picked song by song — not algorithm-generated.
Pick a song. Mix it free for 24 hours.
Sign in, unlock any song, and the full mixer opens. When you want the rest of the 600-song catalog, Pro is $3.99/mo, cancel anytime.