Tempo without the chipmunk
Speed changes keep the pitch where it was.
Tempo & key
Slow it down. Keep the pitch.
Change the speed and the key independently. Slow a solo to half speed and it stays in tune; move a song into your key and the tempo stays put.
Try it in your browser
Tempo and key, separately.
Press play, then drag Tempo: the notes keep their pitch. Drag Key: the groove keeps its speed.
BPM 117Key D minor
Full mix
6 stems inside
Vocals
Drums
Bass
Guitar
Keys
Other
An original demo track, played live in your browser. In the app, you split your own songs.
How it works
Practise at your speed
Import the song
From Files, your library, a video or a link.
Set the tempo and key
Slow it down for practice, or shift the key to suit your voice or tuning.
Add the parts you need
Mute your instrument, keep a click, and play along.
Why Stem Split
Built for musicians.
Key without the drag
Transpose up or down and the tempo stays the same.
With the stems
Slow down just the part you're learning by soloing it.
Record at any speed
Practise slowly, then play it back at full tempo in the Studio.
FAQ
Good questions.
Does slowing a song down change its pitch?
No. Tempo and pitch are independent in Stem Split, so a song at 70% speed stays in its original key.
Can I change the key without changing the speed?
Yes. Transpose the song up or down and the tempo doesn't move.
Is there a metronome?
Yes. The BPM is detected, and you can play a click along with the song.
More with Stem Split
One app, every part.
Isolate guitar
Isolate the guitar in any song on iPhone or iPad. Solo the guitar stem, slow it down without changing the pitch, and see the chord shapes as they go by.
Open →Karaoke maker
Turn any song into a karaoke track on iPhone or iPad. Stem Split removes the vocals with AI, keeps the band, and shows the lyrics line by line.
Open →Chord finder
Find the chords of any song on iPhone or iPad. Stem Split works out the progression, shows a guitar shape for every chord and lines them up with the lyrics.
Open →Try it on your songs.
Free on the App Store for iPhone and iPad.
