PianoMeter – Piano Tuner
v5.1.0 · 20.2 MB · code 133
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File information
UpdatedMar 17, 2026
PublishedMay 1, 2021
Packagecom.willeypianotuning.toneanalyzer
Versionv5.1.0 (133)
Size20.2 MB
MD50631a42554b35b47ddf3308db189b711
Min SDK24
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA163:D7:C0:C9:71:CF:15:C0:9B:05:C7:DB:62:14:B9:97:DE:5D:2E:89
SignerCN=Jukka Rauhala
Total downloads100,000
This version100,000
DeveloperWilley Piano
Age ratingEveryone
What's new in v5.1.0
5.0.1 release:
- Bug fixes
5.0.0 release:
- New Adaptive Bass Stretch auto-adjusts bass interval weights by piano size. To turn off, set Adaptive Bass Stretch to zero in Style.
- Interval weights rescaled (all styles migrated)
- Bulk-apply any style to all tunings (long press)
- New low stretch style (PTG/RPT exam)
- New tonal energy color palettes
- Inharmonicity weight factor now managed in tuning styles
- Improvements to unequal temperament management and inharmonicity detection
- Bug fixes
5.0.0 release:
- New Adaptive Bass Stretch auto-adjusts bass interval weights by piano size. To turn off, set Adaptive Bass Stretch to zero in Style.
- Interval weights rescaled (all styles migrated)
- Bulk-apply any style to all tunings (long press)
- New low stretch style (PTG/RPT exam)
- New tonal energy color palettes
- Inharmonicity weight factor now managed in tuning styles
- Improvements to unequal temperament management and inharmonicity detection
Security scan
TRUSTED
- Developer signature verified 2026-03-17
- Signature SHA1 63:D7:C0:C9:71:CF:15:C0:9B:05:C7:DB:62:14:B9:97:DE:5D:2E:89
- File MD5 0631a42554b35b47ddf3308db189b711
How to install PianoMeter – Piano Tuner v5.1.0 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 20.2 MB of free storage.
- Grab com.willeypianotuning.toneanalyzer_133.apk — hit the Download button above (20.2 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 0631a42554b35b47…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.willeypianotuning.toneanalyzer_133.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Jukka Rauhala. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open PianoMeter – Piano Tuner — tap Open on the install screen, or find the PianoMeter – Piano Tuner icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for PianoMeter – Piano Tuner
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 7.0 Nougat or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.