function identifyAlbumsInPlaylist(simplifiedPlaylist, returnSimpleArray=true) {
    //returns an array of albumIds that appear in the playlist, without duplicates
    let albumIds = simplifiedPlaylist.map((track) => {
        if (returnSimpleArray) {
            return track.albumId
        } else {
            return ({albumId: track.albumId, albumName: track.albumName, albumUri: track.albumUri})
        }
    })
    albumIds = uniq(albumIds);
    albumIds = shuffleArray(albumIds);
    return albumIds;
}