Learning by ear
Slow a solo to half speed without it dropping in pitch, loop the bar you are working out, and move the loop on by its own length to the next phrase.
Music
iPhone & iPad
Slow Practice: Slow Down Music Slow a piece down, keep its pitch, and practise it up to tempo
Learning a solo by ear or practising a hard passage: play it slower, without the pitch dropping, over and over, and a little faster each time.
Free · one-time purchase “Practise like a pro” €9.99 · no subscription
Requires iOS 18.0
Screenshots
Use cases
A hard passage up to tempo
The trainer starts the loop slower and takes it a step faster after clean passes, a step back after two that went wrong. It remembers your best clean tempo for every loop.
Baroque recordings
Play along with a recording at A 415 on an instrument at 440, or the other way round, in one step.
Features
Free
€0
- Open MP3, M4A, WAV, AIFF or the sound of a video, from Files, Mail or the share sheet — or a song you own from your music library
- Speed from 50 to 150 %, pitch kept. Once a speed has settled, the loop is stretched again in studio quality — drums stay sharp, chords stay whole
- The app finds the beats and the tempo; a loop drawn on the waveform lands on the beat
- A close-up of the loop, and the loop moved on by its own length — the next phrase, for transcribing
- Semitones up or down, for a capo or another key
- As many pieces as you like; each one remembers its loop, speed and pitch
One-time purchase “Practise like a pro”
€9.99
- A tempo trainer that listens: a step faster after clean passes, a step back after two that went wrong. Tap a button, or press a page-turner pedal, when a pass goes wrong. It remembers your best clean tempo for every loop and starts there next time
- Concert pitch: a recording at A 415 played along on your instrument at 440, or 430, 432, 442, 466 — and cents
- Loops and markers by name
- A rest before each pass, to put your hands back
- A practice log: minutes, passes and best tempo, day by day
- 25 to 200 %
Songs streamed from Apple Music are protected, and no app can open them; files you own work.
Everything happens on your device. No account, no ads, no subscription.
Privacy
The app collects no data. Everything you open or create stays on your device until you share it yourself.
Files: Pieces you open are copied into the app's own folder on your device. Nothing is uploaded.
- No account
- No ads
- No tracking
- Works without internet
Frequently asked questions
Why can't I open a song from Apple Music?
Songs streamed from Apple Music are protected, and Apple lets no app read them. Files you own – MP3, M4A, WAV, AIFF or the sound of a video – open from Files, Mail or the share sheet.
What does “Studio stretch” mean?
While you change the speed, the app slows the music at once. When the speed has rested for a moment, it stretches the loop again in better quality, with drums and chords kept apart, and switches over at the start of the next pass.
How does the trainer know a pass went wrong?
You tell it: tap “That pass went wrong”, or press a page-turner pedal. Two such passes in a row take it a step slower.
I bought the upgrade, but it is locked again.
Tap “Restore purchase” on the purchase card in the app. A one-time purchase is tied to your Apple account and does not have to be paid for again.
