# M4A Files with BPM & Comment in Apple Music/Traktor not showing in MP3TAG

**URL:** https://community.mp3tag.de/t/m4a-files-with-bpm-comment-in-apple-music-traktor-not-showing-in-mp3tag/71311
**Category:** Mac
**Created:** [May 20, 2026, 9:53am UTC](https://community.mp3tag.de/t/m4a-files-with-bpm-comment-in-apple-music-traktor-not-showing-in-mp3tag/71311 "2026-05-20T09:53:00Z")
**Posts on this page:** 1
**Showing post:** 28

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### Author: ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [May 27, 2026, 2:59pm UTC](https://community.mp3tag.de/t/m4a-files-with-bpm-comment-in-apple-music-traktor-not-showing-in-mp3tag/71311/28 "2026-05-27T14:59:24Z")

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It could also be that if the info was written by Traktor, then it has vanished in PRIV frames.  
See e.g. here

> [@Decoding the TRAKTOR 4 binary data inside a PRIV tag](https://community.mp3tag.de/t/decoding-the-traktor-4-binary-data-inside-a-priv-tag/54352):
>
> I just add this free little online tool for all the people interested what the DJ-Software "[Traktor](https://www.native-instruments.com/en/catalog/traktor/)" saves inside his proprietary binary chunk inside a PRIV id3 tag. If you save the few available metadata tags for a mp3 file in Traktor, it looks like this: Especially the fields Comment 2 and Cat. No. can't be found as standard ID3 tag and are therefore not readable by Mp3tag. If you analyze such a track with the help of this online tool: [https://hellricer.github.io/2…](https://hellricer.github.io/2021/05/05/decoding-traktor4-field.html)

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