# Muting a MIDI track only mutes notes, not CC values for the steps

**URL:** <https://backstage.polyend.com/t/muting-a-midi-track-only-mutes-notes-not-cc-values-for-the-steps/16403>\
**Category:** Archive\
**Tags:** play-plus, midi-sequencer, by-design, play\
**Created:** [November 28, 2024, 12:41pm UTC](https://backstage.polyend.com/t/muting-a-midi-track-only-mutes-notes-not-cc-values-for-the-steps/16403 "2024-11-28T12:41:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![3xm](https://backstage.polyend.com/user_avatar/backstage.polyend.com/3xm/32/537_2.png) [@3xm](https://backstage.polyend.com/u/3xm)\
**Post date:** [November 28, 2024, 12:41pm UTC](https://backstage.polyend.com/t/muting-a-midi-track-only-mutes-notes-not-cc-values-for-the-steps/16403/1 "2024-11-28T12:41:56Z")

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### Bug Description

When a MIDI track is muted, only the note events are cancelled. CC values applied to the muted steps are still trasmitted.

### Steps to Reproduce

1. Connect an external synth via MIDI.
2. Enter some MIDI notes on a track.
3. Enter other MIDI notes on another track.
4. Also tweak some of the MIDI CC parameters for those notes on the other track.
5. Press play and hear the notes from both tracks.
6. Mute the track that also has MIDI CC information.
7. Realise that the notes are muted but MIDI CC is still sent.

### Occurrence / Frequency

Always.

### Found in Firmware

- **Version** : 1.1.0
- **Build** : 1708

### Attachments

[I recorded a video with this](https://blackfin.cannedtuna.org/polyend/play-plus-midi-cc-mute.mp4). On the last track, each note is alternating between closing and opening the cufoff of the external synth. This happens even if the track is muted.

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**Author:** ![miropoly](https://backstage.polyend.com/user_avatar/backstage.polyend.com/miropoly/32/45_2.png) [@miropoly](https://backstage.polyend.com/u/miropoly)\
**Post date:** [November 28, 2024, 1:52pm UTC](https://backstage.polyend.com/t/muting-a-midi-track-only-mutes-notes-not-cc-values-for-the-steps/16403/2 "2024-11-28T13:52:49Z")

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Hi @3xm , thanks for logging this, but it is deliberate = by design: we don’t mute CCs, only Notes are muted with track Mute in MIDI tracks. We kept this so that external synths still get parameter updates (CCs), so when you unmute them they immediately sound the way they should.

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<div class="post-metadata">

**Author:** ![miropoly](https://backstage.polyend.com/user_avatar/backstage.polyend.com/miropoly/32/45_2.png) [@miropoly](https://backstage.polyend.com/u/miropoly)\
**Post date:** [December 5, 2024, 1:53pm UTC](https://backstage.polyend.com/t/muting-a-midi-track-only-mutes-notes-not-cc-values-for-the-steps/16403/3 "2024-12-05T13:53:30Z")

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