koel/resources/assets/js/stubs/song.js

import album from './album';
import artist from './artist';

export default {
    album,
    artist,
    id: null,
    album_id: 0,
    title: '',
    length: 0,
    fmtLength: '00:00',
    lyrics: '',
    liked: false,
    playCount: 0,
    playbackState: 'stopped',
};