Make any song playable.
- Remove any instrument — guitar, bass, vocals, drums, keys
- Shift the key to match your tuning
- Slow it down without changing pitch
- One-click loudness normalization (EBU R128)
Drop in any song, get a clean track in seconds.
For working musicians / Est. 2026
v1.0 — Live
Your backing
tracks. Ready
to play.
Upload any song. Remove the part you play. Shift the key. Slow it down. Keep it all in one library you can pull up at any gig.
No credit card. First track processed in under a minute.
stempo / library
app.getstempo.com
01 / The mess you know
You didn't pick up
You didn't pick up
an instrument for this.
Backing tracks scattered across folders.
Volumes all over the place.
Re-tuning between songs.
Mouse-fumbling on stage with a guitar in your hands.
There had to be a better way to keep the tracks you actually play.
02 / How it works
Three steps. Maybe a minute.
Step 01
Upload
Drop in any audio file you own — an MP3, a rehearsal recording, a stem you bought.
Step 02
Process
Pull out the instrument you play. Shift the key. Slow it down. Match the loudness.
Step 03
Play
Open it on a laptop, tablet, or phone. Hands stay on the instrument. Keyboard does the rest.
03 / What's inside
Three modules.
Three modules.
One cockpit.
Built to be used while playing.
- Keyboard shortcuts for everything
- Section markers — jump to the solo, bridge, chorus
- A-B loop any region for practice
- Per-song notes and pedal-setting photos
Hands on the guitar. Eyes on the screen.
Your library, anywhere.
- Every track in one place
- Playlists for sets, gigs, or different guitars
- Access from laptop, tablet, or phone
- Volume-matched across the whole library
Open the app, see everything you can play.
04 / The interface
A page for every song.
stempo / song inspector
keys · stems · markers · loops
05 / What players are saying
Built by a working musician.
Built by a working musician.
For the rest of us.
"This replaced four different apps and a YouTube tab."
??
Your name hereCover band guitarist
"I tune half-step down. I never re-tune mid-set anymore."
??
Your name hereSolo gigging musician
"Marker jumps and A-B loop changed how I practice."
??
Your name hereMusic teacher
06 / Pricing
One free tier.
One free tier.
One everything tier.
Free
$0 / month
Try every feature. Keep up to ten songs in your library.
- Library10 songs
- Key + tempoUnlimited
- Stem separation5 / month
- Output quality192 kbps · watermarked
- Keyboard, markers, loopsIncluded
Recommended
Pro
$9.99 USD / month
Unlimited library. Heavy processing. No watermark.
- Library500 songs
- Key, tempo + loudnessUnlimited
- Stem separation30 / month
- Output quality320 kbps · clean
- Priority queueYes
- Money-back14 days
Save ~17% with annual — $99 USD per year
07 / Frequently asked
The honest FAQ.
Q.01Is this legal?
Yes. You upload your own audio. We don't host or download music for you. Anything you process is yours, and stays private to your account.
Q.02What audio quality do you output?
320 kbps MP3 by default on the Pro tier. Free tier outputs at 192 kbps and adds a short watermark to processed files.
Q.03How long does stem separation take?
Most songs take 30 to 90 seconds, depending on length. You'll get a notification when it's done — you can keep working in the meantime.
Q.04Will it work on stage with bad Wi-Fi?
Tracks cache on your device after the first play. No connection needed for playback once a track is loaded.
Q.05Can I cancel anytime?
One click in settings. Your library stays accessible at the free-tier limits if you cancel.
Q.06Is my music private?
Yes. Uploads are encrypted in transit and at rest, visible only to you. We don't train models on your files.
Q.07What if I have feedback?
Reply to any email from us — you'll reach the founder directly.
Stop losing track
of what you can play.
Try it free →
Free forever. No credit card.