[bsoriano]

Below are the items I get back for an album, which one do you mean then?

{
"items": {
"enums": [
"title",
"description",
"artist",
"genre",
"theme",
"mood",
"style",
"type",
"albumlabel",
"rating",
"year",
"musicbrainzalbumid",
"musicbrainzalbumartistid",
"fanart",
"thumbnail",
"playcount",
"genreid",
"artistid",
"displayartist"
],
"description": "Requesting the genreid and/or artistid field will result in increased response times",
"type": "string"
},
"id": "Audio.Fields.Album",
"extends": "Item.Fields.Base"
}

Richard,

Great question, I do not have enough knowledge of the JSON API or how KODI populates the database fields when an album is scraped to know if "artist" in your list above is the albumartist or not. My best test will be to try the sorting by artist when you release the version that has this. Sorry I cannot be of more help at this time.

Regards,

Bart