--cięcie--
   Tone.start();

   let synth = new Tone.Synth().toDestination();

   let loop = new Tone.Loop(time => {
     synth.triggerAttackRelease("C4", "16n", time);
   }, "4n");

   loop.start("0:0:0");
   loop.stop("4:0:0");

   Tone.Transport.start();
});
