# Keys Lock Lag

**URL:** <https://forum.scalermusic.com/t/keys-lock-lag/22219>\
**Category:** Fixed\
**Created:** [May 7, 2025, 9:13am UTC](https://forum.scalermusic.com/t/keys-lock-lag/22219 "2025-05-07T09:13:44Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![carlosbtlr](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/carlosbtlr/32/8850_2.png) [@carlosbtlr](https://forum.scalermusic.com/u/carlosbtlr)\
**Post date:** [March 29, 2025, 9:45am UTC](https://forum.scalermusic.com/t/keys-lock-lag/22219/1 "2025-03-29T09:45:31Z")

</div>

I’m testing the Chord Scales mode of Keys Lock and it almost works perfectly, but the timing is a bit off. I’m using two chords: CMaj(C E G) and F#Maj(F# A# C#) and when I switch to F#Maj, the output keeps banging on C on the root instead of switching to F#. I even did the switch a whole 16th note ahead of time, but it still takes longer for the output to update to F#Maj. I made a screenshot to illustrate the issue.

 ![Scaler 3](https://canada1.discourse-cdn.com/flex012/uploads/scalermusic/original/2X/d/dd4d60e8063eab33dbc7e205e1c4c80005117444.png)

---

<div class="post-metadata">

**Author:** ![carlosbtlr](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/carlosbtlr/32/8850_2.png) [@carlosbtlr](https://forum.scalermusic.com/u/carlosbtlr)\
**Post date:** [May 7, 2025, 9:13am UTC](https://forum.scalermusic.com/t/keys-lock-lag/22219/2 "2025-05-07T09:13:44Z")

</div>

There’s a significant lag in chord updates when using Keys Lock with manual chord triggering (not synced to DAW). I have to delay the melody track 80ms in order to allow the notes to update properly on every chord change, otherwise the notes keep stuck playing the previous chord notes for as long as a whole bar. With the Chord Scales mode is even worse, as it requires at least a 100ms of delay in the melody track for the notes to adapt to the chord changes. This doesn’t happen with Scaler 2 at all.

---

<div class="post-metadata">

**Author:** ![Steven](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/steven/32/10738_2.png) [@Steven](https://forum.scalermusic.com/u/Steven)\
**Post date:** [May 13, 2025, 3:09am UTC](https://forum.scalermusic.com/t/keys-lock-lag/22219/3 "2025-05-13T03:09:52Z")

</div>

Hi @carlosbtlr, thanks for reporting this. We were aware of the issue and have now added it to our [known issue list](https://forum.scalermusic.com/t/list-of-known-issues-descriptions-solutions-timing/20938). It’s currently under investigation and will hopefully be fixed in the [3.1 update](https://forum.scalermusic.com/t/coming-in-scaler-3-1-may-14-2025/20942). Cheers.

---

<div class="post-metadata">

**Author:** ![Steven](https://yyz2.discourse-cdn.com/flex012/user_avatar/forum.scalermusic.com/steven/32/10738_2.png) [@Steven](https://forum.scalermusic.com/u/Steven)\
**Post date:** [March 27, 2026, 4:11am UTC](https://forum.scalermusic.com/t/keys-lock-lag/22219/4 "2026-03-27T04:11:48Z")

</div>

Hi @carlosbtlr, thanks for your patience. The lag you described with Keys Lock chord updates should now be resolved in [Scaler 3.2.1](https://forum.scalermusic.com/t/scaler-3-latest-version/20939/11), which includes improvements to Keys Lock responsiveness. Cheers.