# Bluetooth MIDI Keyboard Stuck in Mono (No Polyphony / Chords)

**URL:** <https://discussion.ntrack.com/t/bluetooth-midi-keyboard-stuck-in-mono-no-polyphony-chords/21235>\
**Category:** Uncategorized\
**Created:** [November 4, 2026, 4:10pm UTC](https://discussion.ntrack.com/t/bluetooth-midi-keyboard-stuck-in-mono-no-polyphony-chords/21235 "2026-11-04T16:10:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Burhan\_Buke1](https://discussion.ntrack.com/letter_avatar_proxy/v4/letter/b/f1d935/32.png) [@Burhan\_Buke1](https://discussion.ntrack.com/u/Burhan_Buke1)\
**Post date:** [November 4, 2026, 4:10pm UTC](https://discussion.ntrack.com/t/bluetooth-midi-keyboard-stuck-in-mono-no-polyphony-chords/21235/1 "2026-11-04T16:10:33Z")

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I’m experiencing a polyphony issue in n-Track Studio Pro (Android) while using a Bluetooth MIDI keyboard.

​When I press two or more keys simultaneously, the instrument does not play chords or multiple notes. It only triggers a single note at a time (monophonic/legato behavior).

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**Author:** ![FlavioA](https://discussion.ntrack.com/user_avatar/discussion.ntrack.com/flavioa/32/227_2.png) [@FlavioA](https://discussion.ntrack.com/u/FlavioA)\
**Post date:** [November 5, 2026, 4:34pm UTC](https://discussion.ntrack.com/t/bluetooth-midi-keyboard-stuck-in-mono-no-polyphony-chords/21235/2 "2026-11-05T16:34:32Z")

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It happens only with the bluetooth keyboard or also when you play on the screen keyboard? With a specific instrument or also if you create a new test piano track? If it’s specific to a track, you may have either enabled one of the legato modes in the Synth or Sampler settings, or you may have inadvertently set the Polyphony setting to 1.

Flavio.

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<div class="post-metadata">

**Author:** ![Burhan\_Buke1](https://discussion.ntrack.com/letter_avatar_proxy/v4/letter/b/f1d935/32.png) [@Burhan\_Buke1](https://discussion.ntrack.com/u/Burhan_Buke1)\
**Post date:** [November 5, 2026, 4:51pm UTC](https://discussion.ntrack.com/t/bluetooth-midi-keyboard-stuck-in-mono-no-polyphony-chords/21235/3 "2026-11-05T16:51:43Z")

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The issue happens only when connecting via Bluetooth MIDI.

On-screen keyboard works fine with full polyphony.

USB cable connection works with zero issues on all instruments.

The problem occurs across all instruments (including a newly created default piano track).

I pair the keyboard as a BLE-MIDI device directly within n-Track settings. It sends MIDI control data and notes, but it limits performance to single notes (monophonic) over Bluetooth. Cable connection remains completely multi-touch/polyphonic.