Volumio showing artists from online metadata instead of local file tags – how to disable external metadata lookup?

Hello,

I am trying to configure my Volumio installation to use only the metadata embedded in my local music files for library indexing and browsing categories (Artist, Album Artist, Genre, etc.).

I noticed that some albums are showing artists that are not present in the file metadata. For example:

File:

(...)as/Trolls/11. September.mp3

The embedded metadata is:

Album: Trolls
Artist: Filmes & Temas
Album Artist: Filmes & Temas
Genre: Soundtrack
Title: September
Track: 11/13
Year: 2016
Publisher: RCA

I verified the tags using both ffprobe and exiftool:

ffprobe -show_entries format_tags

and:

exiftool "11. September.mp3"

Both confirm that the artist information inside the file is:

Artist: Filmes & Temas
Band: Filmes & Temas

However, in the Volumio interface this album is being displayed with artists:

Justin Timberlake
Anna Kendrick

These artists are not present anywhere in the local file metadata.

My MPD configuration seems to be using the local library:

/var/lib/mpd/music/NAS -> /mnt/NAS

The NAS mount is:

/mnt/NAS/Music

MPD itself appears to only see the local files:

mpc ls
NAS
INTERNAL

and after rebuilding:

sudo systemctl restart mpd
mpc update

the issue remains.

I also checked the MPD database/cache:

/var/lib/mpd/tag_cache

and I do not see evidence that MPD is downloading artist information.

My question:

Does Volumio perform an external metadata lookup/enrichment after reading the local MP3 tags?

If yes:

  • Which service/provider is responsible?
  • Is there a configuration option to disable it?
  • How can I force Volumio to use only embedded metadata from the files?

I would like the library categories to be generated exclusively from the tags stored in my files, without any online correction or enrichment.

System information:

  • Volumio version:4.119
  • Hardware: Raspberry Pi 3B+
  • Music source: SMB/NAS share
  • Files: MP3 with ID3 tags (mp3tags edited)
  • MPD database rebuilt after changes

May some one help me?

Thank you.