Chord Tracker v2.3.9.0
APK · 90.3 MB · version code 20 · Android 11+ · uploaded May 11, 2026
- Signature matches the Google Play version Details
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File information
- Version
- v2.3.9.0 (20)
- Uploaded
- May 11, 2026
- Size
- 90.3 MB
- Requires
- Android 11+ (API 30)
- CPU support
- ARM 64-bit
- Screen
- Small screens and larger
- MD5
- d794885a44686ef63147743e3b7f7583
- Signing certificate (SHA-1)
- 19:21:B8:97:05:AA:7B:B2:64:E5:0B:81:21:5D:0B:4F:66:84:95:D8
- Signed by
- CN=uxyamaha, OU=ux, O=yamaha, L=hamamatsu, ST=shizuoka, C=jp
- File name
- jp-co-yamaha-emi-chordtracker-20-74714717-d794885a44686ef63147743e3b7f7583.apk
- Package
- jp.co.yamaha.emi.chordtracker
- Downloads (all versions)
- 1M+
- Age rating
- PEGI 3 · Everyone
What's new in v2.3.9.0
-We have updated the app to accommodate changes to Android OS specifications.
*As of V2.3.9, the app no longer supports 32-bit Android devices or versions of Android before Android 11.
If you are using said devices or operating system, you will no longer be able to update or reinstall the app.
However, you can continue to use currently installed versions of the app as before.
We sincerely apologize for any inconvenience that this may cause, and appreciate your understanding.
Permissions (11)
This version requests 11 permissions, 3 of them sensitive.
- Bluetooth connect Sensitive android.permission.BLUETOOTH_CONNECT
- Bluetooth scan Sensitive android.permission.BLUETOOTH_SCAN
- Read media audio Sensitive android.permission.READ_MEDIA_AUDIO
- Advertising ID com.google.android.gms.permission.AD_ID
- Change wifi multicast state android.permission.CHANGE_WIFI_MULTICAST_STATE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Internal broadcast protection (app-defined) jp.co.yamaha.emi.chordtracker.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on May 11, 2026.
- Certificate issued to “yamaha” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks
- Developer signature verified May 11, 2026
- Validated against Google Play May 11, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself.
How to install Chord Tracker on Android 11+
You'll need about 180.7 MB of free space.
- Download the APK — tap Download APK above (90.3 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap jp-co-yamaha-emi-chordtracker-20-74714717-d794885a44686ef63147743e3b7f7583.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be d794885a44686ef63147743e3b7f7583. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Chord Tracker — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 11+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.