"Album Artist" doesn't end up in Maloja

[Fratt]

Hello,

First, thanks so much for Multi-Scrobbler, it's great!

I have a pretty standard setup (Spotify -> Multi-Scrobbler -> Maloja), and I'm trying to figure out why the "Album artist" does not end up in Maloja.

Here is an example :

• https://open.spotify.com/track/0dYovyBKizxbMla12ofzBr?si=05f0ec8a93a94daa
• This song has the artists "Dubmood" and "MASTER BOOT RECORD"
• The album (that contains this song) has the artist "Dubmood".

The problem is that at the very end of the line, Maloja does not receive the info that "Album Artist = Dubmood". Therefore, it creates an album in Maloja that has two artists, "Dubmood" and "MASTER BOOT RECORD", which is wrong : This album should have one artist, "Dubmood".

Two theories:

• This information is not returned to Multi-Scrobbler by the Spotify API.
• Multi-Scrobbler does not consume this information and/or does not pass it onto Maloja API.

In Maloja log, I see that this "album artist" field has not been sent by Multi-Scrobbler.

I looked in the Multi-Scrobbler logs, but it doesn't help me see what's wrong :-(

Any clue how this can be fixed ? Is this a known limitation ?

Thank you so much

[Fratt]

Something that worries me, because it might very well mean that my first theory is the right one :

When I look here : /api/recent?name=unnamed&type=spotify&upstream=1
I find an example of a track that is supposed to have Album Artists, but that doesn't have any:

{
	"5": {
		"data": {
			"artists": [
				"ANGRA",
				"Kiko Loureiro"
			],
			"albumArtists": [],
			"album": "Ømni",
			"track": "War Horns",
			"duration": 283.213,
			"playDate": "2024-12-14T07:13:10.183Z",
			"playDateCompleted": "2024-12-14T07:13:10.183Z"
		},
		"meta": {
			"deviceId": "NoDevice-SingleUser",
			"source": "Spotify",
			"trackId": "2HfDv1yFV7LiUhRZn0Et3J",
			"scrobbleTsSOC": 2,
			"newFromSource": false,
			"url": {
				"web": "https://open.spotify.com/track/2HfDv1yFV7LiUhRZn0Et3J"
			},
			"art": {
				"album": "https://i.scdn.co/image/ab67616d00001e022bfed69a479d8bff2e5ae862"
			}
		}
	}
}

I hope this doesn't mean that Spotify is simply not returning this info :'(

Please, be a bug a Multi-Scrobbler 🙏 🙏 🙏

[Fratt]

I'm not sure this piece of code does what the comment is saying, @FoxxMD :

multi-scrobbler/src/backend/sources/SpotifySource.ts

Line 165 in b93274f

if(albumArtists.filter(x => !trackArtistIds.includes(x.id)).length > 0) {

[Fratt]

This would do the trick, imho :

if ((trackArtistIds.length !== albumArtists.length) || !trackArtistIds.every(trackArtistId => albumArtists.some(albumArtist => trackArtistId === albumArtist.id))) {
   actualAlbumArtists = albumArtists;
}

If I find the time, I will test it and prepare a PR :-)

[Fratt]

PR incoming.

[Fratt]

#240