They use Bluetooth for different information
Bluetooth Audio sends music or app sound from a phone to the piano speakers. Bluetooth MIDI sends performance data, such as which key was pressed and when, from the piano to an app.
Hearing phone audio through the piano does not prove that Bluetooth MIDI is connected. Likewise, working MIDI input does not mean phone audio will play through the piano speakers.
Look for MIDI support in the product specification
A specification that says only Bluetooth, audio or speaker connection leaves wireless MIDI support unconfirmed. Look for Bluetooth MIDI, BLE MIDI or Bluetooth LE MIDI. Some models require a dedicated adapter.
- Bluetooth Audio only: the app may not discover the piano as a key-input device.
- Bluetooth MIDI supported: enable MIDI on the piano and select it inside the app.
- Support unclear: check the model manual or use USB MIDI.
Complete the connection in the app MIDI list
Turn on Bluetooth MIDI on the piano and Bluetooth on the phone or tablet, then select the piano from the Hello, Piano connection screen. Pairing only in the operating system audio list may leave MIDI disconnected.
Allow the app to use Bluetooth and press a key while close to the piano. A moving input display confirms the MIDI path.
Clear existing connections when the device is missing
Another music app or device may already hold the MIDI connection. Close that app, disconnect the other device, then turn the piano Bluetooth MIDI function off and on before scanning again.
- Check the app Bluetooth permission.
- Disconnect MIDI in other apps and devices.
- Scan again near the piano.
- If it is still missing, verify model support and any required adapter.
Test sound and key input separately
Play music from the mobile device and listen for it through the piano speakers. Then select the piano in the app's MIDI device list and press a key to check input. These tests check different paths.
- Music plays but keys do not register: audio works; MIDI support and app connection need a separate check.
- Keys register but music does not play through the piano: MIDI works; check the audio output separately.
- Neither works: check the model's manual for support and connection steps for each.
If wireless discovery still fails
Check the exact model and any required dedicated adapter, disconnect other devices and search again nearby. If support remains unclear or discovery fails, test input over USB MIDI if the model supports it. A successful USB test does not establish wireless MIDI support.
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