Enjoy Soun♩Trax on your website!

<script src="fflate.js"></script>
<script src="soundtrax.js"></script>
<script>
  music.jig( '/path/to/your.jsong' ).then( song=>{
    console.log( song );
    song.play(0).then(x=>song.stop().then(y=>{    // play and stop are Promises
      song.fade(5,67)                            // fade-in over 5 seconds to volume 67/100
      setTimeout(z=>song.fade(-5,false), 9e3)   // fade-out over 5 seconds
    }))
  } )
</script>