Room setup
Reduce ambient noise as much as possible so note locking stays stable.
Field workflow guide
How to tune an acoustic piano with iPhone.
An iPhone can support acoustic piano tuning if you use a workflow built for note stability, stretch behavior, and repeatable session records.
Step-by-step workflow
- Calibrate your environment and A4 reference before starting.
- Lock onto a stable note with live feedback on the Stage.
- Sample the piano to generate a stretch curve when needed.
- Work through the tuning pass using auto or step mode.
- Save the session and export a report after the service is complete.
Before you start
Reference setup
Confirm A4 calibration before touching the instrument.
Session setup
Create or open the piano record so you can save the visit cleanly.
Quality checks during tuning
- Note lock remains stable long enough to make a confident adjustment.
- Stretch behavior is sampled rather than assumed when the piano needs it.
- Octave relationships sound more musical after analysis, not less.
- Session data is saved before leaving the instrument.
- Report output is clean enough for future reference.
Frequently asked questions
Can I tune an acoustic piano with only an iPhone?
The iPhone can support the measurement workflow, but the result still depends on proper tuning technique and judgment.
Why is stretch sampling important?
Because real acoustic pianos do not behave like perfectly ideal strings across the keyboard.
What should I save after each tuning session?
Piano identity, sampled profile, and a clean record of the completed session.
Run this acoustic tuning workflow in Tempera.
Install Tempera to move from live note feedback to saved piano records in one structured app flow.