diff --git a/backend/mediaprovider/mediaprovider.go b/backend/mediaprovider/mediaprovider.go
index a8e61c2..126e7d0 100644
--- a/backend/mediaprovider/mediaprovider.go
+++ b/backend/mediaprovider/mediaprovider.go
@@ -34,7 +34,9 @@ type Favorites struct {
 type MediaProvider interface {
 	GetAlbum(albumID string) (*AlbumWithTracks, error)
 
-	GetArtist(artistID string) (*Artist, error)
+	GetArtist(artistID string) (*ArtistWithAlbums, error)
+
+	GetArtistInfo(artistID string) (*ArtistInfo, error)
 
 	GetPlaylist(playlistID string) (*PlaylistWithTracks, error)
 
@@ -56,9 +58,21 @@ type MediaProvider interface {
 
 	GetFavorites() (Favorites, error)
 
-	GetPlaylists() ([]Playlist, error)
-
 	SetFavorite(params RatingFavoriteParameters) error
 
 	SetRating(params RatingFavoriteParameters) error
+
+	GetPlaylists() ([]Playlist, error)
+
+	CreatePlaylist(name string, trackIDs []string) error
+
+	EditPlaylist(id, name, description string, public bool) error
+
+	EditPlaylistTracks(id string, trackIDsToAdd, trackIDsToRemove []string) error
+
+	ReplacePlaylistTracks(id string, trackIDs []string) error
+
+	DeletePlaylist(id string) error
+
+	Scrobble(trackID string, submission bool) error
 }
diff --git a/backend/mediaprovider/model.go b/backend/mediaprovider/model.go
index 64f7a50..366a691 100644
--- a/backend/mediaprovider/model.go
+++ b/backend/mediaprovider/model.go
@@ -19,11 +19,23 @@ type AlbumWithTracks struct {
 }
 
 type Artist struct {
-	ID     string
-	Name   string
+	ID         string
+	Name       string
+	AlbumCount int
+}
+
+type ArtistWithAlbums struct {
+	Artist
 	Albums []Album
 }
 
+type ArtistInfo struct {
+	Biography      string
+	LastFMUrl      string
+	ImageURL       string
+	SimilarArtists []Artist
+}
+
 type Genre struct {
 	Name       string
 	AlbumCount int
@@ -39,10 +51,11 @@ type Track struct {
 	Genre       string
 	ArtistIDs   []string
 	ArtistNames []string
+	Album       string
 	Rating      int
 	Favorite    bool
 	Size        int64
-	PlayCount   int64
+	PlayCount   int
 	FilePath    string
 }
 
diff --git a/backend/mediaprovider/subsonic/subsonicmediaprovider.go b/backend/mediaprovider/subsonic/subsonicmediaprovider.go
new file mode 100644
index 0000000..e69de29