diff --git a/src/lib/opensubsonic.ts b/src/lib/opensubsonic.ts
index 82ccacf..d68cca5 100644
--- a/src/lib/opensubsonic.ts
+++ b/src/lib/opensubsonic.ts
@@ -76,4 +76,176 @@ export module OpenSubsonic {
         Cookies.set("subsonicSalt", salt, options);
         Cookies.set("subsonicUsername", username, options);
     }
+}
+
+export interface Parameter {
+    key: string,
+    value: string
+}
+
+interface OpenSubsonicResponse {
+    status: string,
+    version: string,
+    type: string,
+    serverVersion: string,
+    openSubsonic: boolean,
+}
+
+export interface Song {
+    id: string,
+    parent?: string,
+    isDir: boolean,
+    title?: string,
+    album?: string,
+    artist?: string,
+    track?: number,
+    year?: number,
+    genre?: string,
+    coverArt?: string,
+    size?: number,
+    contentType?: string,
+    suffix?: string,
+    transcodedContentType?: string,
+    transcodedSuffix?: string,
+    duration?: number,
+    bitRate?: number,
+    bitDepth?: number,
+    samplingRate?: number,
+    channelCount?: number,
+    bitRate?: number,
+    path?: string,
+    isVideo?: boolean,
+    userRating?: number,
+    averageRating?: number,
+    playCount?: number,
+    discNumber?: number,
+    created?: string,
+    starred?: string,
+    albumId?: string,
+    artistId?: string,
+    type?: string,
+    mediaType?: string,
+    bookmarkPosition?: number,
+    originalWidth?: number,
+    originalHeight?: number,
+    played?: string,
+    bpm?: number,
+    comment?: string,
+    sortName?: string,
+    musicBrainzId?: string,
+    genres?: Array<ItemGenre>,
+    artists?: Array<ArtistID3>,
+    displayArtist?: string,
+    albumArtists?: Array<ArtistID3>,
+    displayAlbumArtist?: string,
+    contributors?: Array<Contributor>
+    displayComposer?: string,
+    moods?: Array<string>,
+    replayGain?: ReplayGain,
+}
+
+export interface ItemGenre {
+    name: string
+}
+
+export interface ReplayGain {
+    trackGain?: number,
+    albumGain?: number,
+    trackPeak?: number,
+    albumPeak?: number,
+    baseGain?: number,
+    fallbackGain?: number,
+}
+
+export interface NowPlayingResponse extends OpenSubsonicResponse {
+    nowPlaying: NowPlaying
+}
+
+interface NowPlaying {
+    entry: Array<NowPlayingEntry>
+}
+
+export interface NowPlayingEntry extends Song {
+    username: string,
+    minutesAgo?: string,
+    playerId?: number,
+    playerName?: string,
+}
+
+export interface GetPlayQueueResponse extends OpenSubsonicResponse {
+    playQueue: PlayQueue
+}
+
+interface PlayQueue extends NowPlaying {
+    dummy: string
+}
+
+export interface GetAlbumList2Response extends OpenSubsonicResponse {
+    albumList2: AlbumList2
+}
+
+export interface AlbumList2 {
+    album: Array<AlbumID3>
+}
+
+export interface AlbumID3 {
+    id: string,
+    name: string,
+    artist?: string,
+    artistId?: string,
+    coverArt?: string,
+    songCount: number,
+    duration: number,
+    playCount?: number,
+    created: string,
+    starred?: string,
+    year?: number,
+    genre?: string,
+    played?: string,
+    userRating?: number,
+    recordLabels?: Array<RecordLabel>,
+    musicBrainzId?: string,
+    genres?: Array<ItemGenre>,
+    artists?: Array<ArtistID3>,
+    displayArtist?: string,
+    releaseTypes?: Array<string>,
+    moods?: Array<string>,
+    sortName?: string,
+    originalReleaseDate?: ItemDate,
+    releaseDate?: ItemDate,
+    isCompilation?: boolean,
+    discTitles?: Array<DiscTitle>
+}
+
+interface RecordLabel {
+    name: string
+}
+
+interface ArtistID3 {
+    id: string,
+    name: string,
+    coverArt?: string,
+    artistImageUrl?: string,
+    albumCount?: number,
+    starred?: string,
+    musicBrainzId?: string,
+    sortName?: string,
+    roles?: Array<string>
+}
+
+interface Contributor {
+    role: string,
+    subRole?: string,
+    artist: ArtistID3,
+}
+
+interface ItemDate {
+    year?: number,
+    month?: number,
+    day?: number,
+}
+
+interface DiscTitle {
+    disc: number,
+    title: string,
 }
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