# Strange problem, music changes pitch

**URL:** <https://qa.fmod.com/t/strange-problem-music-changes-pitch/12860>\
**Category:** Unreal Engine\
**Created:** [December 9, 2016, 4:07pm UTC](https://qa.fmod.com/t/strange-problem-music-changes-pitch/12860 "2016-12-09T16:07:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Micha](https://avatars.discourse-cdn.com/v4/letter/m/c37758/32.png) [@Micha](https://qa.fmod.com/u/Micha)\
**Post date:** [December 9, 2016, 4:07pm UTC](https://qa.fmod.com/t/strange-problem-music-changes-pitch/12860/1 "2016-12-09T16:07:15Z")

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Hi!

At the start of my game, my music starts pitched down a few half tones from where it should be. It then switches back to the right pitch, and back. Also, it “glides” down gradually to the other pitch. Sounds a bit like a broken record player.

Needles to say, i have not implemented any kind of pitch automation or a parameter for controlling pitch in my music! It’s just supposed to play (and has done so in earlier versions).

Any idea what might be causing this?  
Running 1.08.09 with a custom build of UE 4.12.5

Thank you,  
Micha

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<div class="post-metadata">

**Author:** ![Micha](https://avatars.discourse-cdn.com/v4/letter/m/c37758/32.png) [@Micha](https://qa.fmod.com/u/Micha)\
**Post date:** [December 11, 2016, 8:02pm UTC](https://qa.fmod.com/t/strange-problem-music-changes-pitch/12860/2 "2016-12-11T20:02:36Z")

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Found the solution myself,  
for some reason doppler was activated on the master of the music event. ^^