01
Start singing
Open Live and allow microphone access. Use a quiet room, one singer or instrument at a time, and a consistent distance from the microphone. Automatic listening can be changed in Settings. Tap Pause whenever needed.
Vocal & Note Training
Sonapetal
See your voice bloom.
Sonapetal is a musical practice companion for iPhone and iPad, with live note/Hz feedback, a glass note flower, staff and piano displays, session recaps and editable melody capture.
iOS · iPadOS · US$4.99
iOSiPadOS
How it works
Four ways to practice
Live listening, session saving, keyboard reading, and melody capture — each designed to give you clear, honest feedback without getting in the way of your practice.
02
Save a session
Hold a comfortable note for about a second to capture an endpoint. Tap Save session at the top of Live. The app pauses, saves and opens Sessions. New entries are marked Just saved. Practice recap offers one observation and one short exercise.
03
Understand the keyboard
The full 88-key overview shows the exact pitch. The enlarged C–B keys stay stationary while octave numbers follow your register. Disable octave-label following in Settings to select octaves from the overview manually.
04
Capture a melody
Compose captures one note at a time at the chosen tempo. Finish capture, edit pitch, duration and rests, and use basic score playback. Export MIDI or MusicXML using the share sheet.
Features
Everything you need to practice well.
Live note & Hz feedback
Real-time pitch detection shows your note name and frequency as you sing or play, with a glass note flower that responds to your voice.
Staff and piano displays
See your pitch on a full staff and an 88-key piano overview simultaneously, so you always know exactly where you are in the register.
Session recaps
Each saved session includes a practice recap with one observation and one short exercise tailored to what you sang.
Editable melody capture
Compose mode captures one note at a time. Edit pitch, duration and rests after capture, then export as MIDI or MusicXML.
On-device — no account required
Sessions and scores are stored on your device. There is no separate account, cloud sync or in-app backup tool.
Practice gently
Detected pitch and range are practice aids, not a voice-type diagnosis or vocal-health assessment. Use comfortable notes and stop if singing feels strained.
Pricing
US$4.99
One-time purchase. No subscription. No in-app purchases.
Support
Need help?
Email info@metalmirror.co with your iPhone or iPad model, iOS version, app version and a short description of the issue. Avoid sending private recordings or sensitive information. A screenshot can help if it contains no personal information.