diff --git a/src/renderer/api/subsonic/subsonic-controller.ts b/src/renderer/api/subsonic/subsonic-controller.ts
index 23a818fa..f80df62e 100644
--- a/src/renderer/api/subsonic/subsonic-controller.ts
+++ b/src/renderer/api/subsonic/subsonic-controller.ts
@@ -125,7 +125,7 @@ export const SubsonicController: ControllerEndpoint = {
         }
 
         return {
-            id: res.body.playlist.id,
+            id: res.body.playlist.id.toString(),
             name: res.body.playlist.name,
         };
     },
@@ -570,7 +570,10 @@ export const SubsonicController: ControllerEndpoint = {
         }
 
         return {
-            items: res.body.musicFolders.musicFolder,
+            items: res.body.musicFolders.musicFolder.map((folder) => ({
+                id: folder.id.toString(),
+                name: folder.name,
+            })),
             startIndex: 0,
             totalRecordCount: res.body.musicFolders.musicFolder.length,
         };
@@ -902,7 +905,7 @@ export const SubsonicController: ControllerEndpoint = {
                     fromAlbumPromises.push(
                         ssApiClient(apiClientProps).getAlbum({
                             query: {
-                                id: albumId,
+                                id: albumId.toString(),
                             },
                         }),
                     );
diff --git a/src/renderer/api/subsonic/subsonic-normalize.ts b/src/renderer/api/subsonic/subsonic-normalize.ts
index ca667397..f3cfc2b5 100644
--- a/src/renderer/api/subsonic/subsonic-normalize.ts
+++ b/src/renderer/api/subsonic/subsonic-normalize.ts
@@ -54,16 +54,16 @@ const normalizeSong = (
         album: item.album || '',
         albumArtists: [
             {
-                id: item.artistId || '',
+                id: item.artistId?.toString() || '',
                 imageUrl: null,
                 name: item.artist || '',
             },
         ],
-        albumId: item.albumId || '',
+        albumId: item.albumId?.toString() || '',
         artistName: item.artist || '',
         artists: [
             {
-                id: item.artistId || '',
+                id: item.artistId?.toString() || '',
                 imageUrl: null,
                 name: item.artist || '',
             },
@@ -95,7 +95,7 @@ const normalizeSong = (
                   },
               ]
             : [],
-        id: item.id,
+        id: item.id.toString(),
         imagePlaceholderUrl: null,
         imageUrl,
         itemType: LibraryItem.SONG,
@@ -146,7 +146,7 @@ const normalizeAlbumArtist = (
         biography: null,
         duration: null,
         genres: [],
-        id: item.id,
+        id: item.id.toString(),
         imageUrl,
         itemType: LibraryItem.ALBUM_ARTIST,
         lastPlayedAt: null,
@@ -178,9 +178,11 @@ const normalizeAlbum = (
     return {
         albumArtist: item.artist,
         albumArtists: item.artistId
-            ? [{ id: item.artistId, imageUrl: null, name: item.artist }]
+            ? [{ id: item.artistId.toString(), imageUrl: null, name: item.artist }]
+            : [],
+        artists: item.artistId
+            ? [{ id: item.artistId.toString(), imageUrl: null, name: item.artist }]
             : [],
-        artists: item.artistId ? [{ id: item.artistId, imageUrl: null, name: item.artist }] : [],
         backdropImageUrl: null,
         comment: null,
         createdAt: item.created,
@@ -195,7 +197,7 @@ const normalizeAlbum = (
                   },
               ]
             : [],
-        id: item.id,
+        id: item.id.toString(),
         imagePlaceholderUrl: null,
         imageUrl,
         isCompilation: null,
@@ -232,7 +234,7 @@ const normalizePlaylist = (
         description: item.comment || null,
         duration: item.duration,
         genres: [],
-        id: item.id,
+        id: item.id.toString(),
         imagePlaceholderUrl: null,
         imageUrl: getCoverArtUrl({
             baseUrl: server?.url,
diff --git a/src/renderer/api/subsonic/subsonic-types.ts b/src/renderer/api/subsonic/subsonic-types.ts
index 3ac3c81e..d3922d31 100644
--- a/src/renderer/api/subsonic/subsonic-types.ts
+++ b/src/renderer/api/subsonic/subsonic-types.ts
@@ -19,6 +19,8 @@ const authenticateParameters = z.object({
     v: z.string(),
 });
 
+const id = z.number().or(z.string());
+
 const createFavoriteParameters = z.object({
     albumId: z.array(z.string()).optional(),
     artistId: z.array(z.string()).optional(),
@@ -43,7 +45,7 @@ const setRatingParameters = z.object({
 const setRating = z.null();
 
 const musicFolder = z.object({
-    id: z.string(),
+    id,
     name: z.string(),
 });
 
@@ -66,9 +68,9 @@ const genreItem = z.object({
 
 const song = z.object({
     album: z.string().optional(),
-    albumId: z.string().optional(),
+    albumId: id.optional(),
     artist: z.string().optional(),
-    artistId: z.string().optional(),
+    artistId: id.optional(),
     averageRating: z.number().optional(),
     bitRate: z.number().optional(),
     bpm: z.number().optional(),
@@ -79,7 +81,7 @@ const song = z.object({
     duration: z.number().optional(),
     genre: z.string().optional(),
     genres: z.array(genreItem).optional(),
-    id: z.string(),
+    id,
     isDir: z.boolean(),
     isVideo: z.boolean(),
     musicBrainzId: z.string().optional(),
@@ -100,12 +102,12 @@ const song = z.object({
 const album = z.object({
     album: z.string(),
     artist: z.string(),
-    artistId: z.string(),
+    artistId: id,
     coverArt: z.string(),
     created: z.string(),
     duration: z.number(),
     genre: z.string().optional(),
-    id: z.string(),
+    id,
     isCompilation: z.boolean().optional(),
     isDir: z.boolean(),
     isVideo: z.boolean(),
@@ -140,7 +142,7 @@ const albumArtist = z.object({
     albumCount: z.string(),
     artistImageUrl: z.string().optional(),
     coverArt: z.string().optional(),
-    id: z.string(),
+    id,
     name: z.string(),
     starred: z.string().optional(),
 });
@@ -398,7 +400,7 @@ const playlist = z.object({
     created: z.string(),
     duration: z.number(),
     entry: z.array(song).optional(),
-    id: z.string(),
+    id,
     name: z.string(),
     owner: z.string(),
     public: z.boolean(),