# Convert and multiple MUSICBRAINZ\_ALBUMARTISTID

**URL:** <https://discourse.beets.io/t/convert-and-multiple-musicbrainz-albumartistid/37>\
**Category:** Help\
**Created:** [February 23, 2017, 2:00pm UTC](https://discourse.beets.io/t/convert-and-multiple-musicbrainz-albumartistid/37 "2017-02-23T14:00:59Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![anon19329709](https://avatars.discourse-cdn.com/v4/letter/a/e68b1a/32.png) [@anon19329709](https://discourse.beets.io/u/anon19329709)\
**Post date:** [February 23, 2017, 2:00pm UTC](https://discourse.beets.io/t/convert-and-multiple-musicbrainz-albumartistid/37/1 "2017-02-23T14:00:59Z")

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In my flac files, which I have imported into beets, everything is ok with the tags. But when I convert them, in my case into opus files, only **one** musicbrainz\_albumartistid remains. Multiple IDs are essential to classical music, and Picard retrieves them from the musicbrainz server. And Kodi relies on them to be present. So, I guess it is a bug, that these additional musicbrainz\_albumartistids get lost?

I’m not sure how this can happen, because I thought it only uses the command which I have specified in the config file:

```
convert:
  dest: ~/Musik_transcodiert
  copy_album_art: no
  format: opus
  formats:
    opus:
      command: opusenc --bitrate 160 $source $dest

```

But when I use this opusenc command manually, all of the tags are there…

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**Author:** ![adrian](https://yyz1.discourse-cdn.com/flex029/user_avatar/discourse.beets.io/adrian/32/4_2.png) [@adrian](https://discourse.beets.io/u/adrian)\
**Post date:** [February 23, 2017, 2:37pm UTC](https://discourse.beets.io/t/convert-and-multiple-musicbrainz-albumartistid/37/2 "2017-02-23T14:37:44Z")

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Yes; we don’t currently support multi-valued tags.

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<div class="post-metadata">

**Author:** ![anon19329709](https://avatars.discourse-cdn.com/v4/letter/a/e68b1a/32.png) [@anon19329709](https://discourse.beets.io/u/anon19329709)\
**Post date:** [February 23, 2017, 4:22pm UTC](https://discourse.beets.io/t/convert-and-multiple-musicbrainz-albumartistid/37/3 "2017-02-23T16:22:37Z")

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Thanks for the quick response. That explains everything. Unfortunately that’s a showstopper for me. ☹