​

​

// Create a Player object and load the "kick.mp3" file

const kick = new Tone.Player("samples/505/kick.mp3");

​

// Connect the player output to the computer's audio output

kick.toDestination();

​

// Set the tempo / speed, which is measured in 'beats per minute', or bpm.

// Try setting the bpm to different values

Tone.Transport.bpm.value = 120;

// Our speed is now 120 beats per minute = 2 beats per second. 

// --> each beat lasts 0.5 seconds.

// --> quarter note duration is set to 0.5 seconds 

// (by default, Tone sets the time signature to be 4/4. 

// the denominator says that the duration of the beat is the duration of a quarter note)

​

// Create a loop: call the function playBeat every quarter note 

// "4n" stands for quarter note. Try replacing "4n" with "2n", "8n", "16n" 

Tone.Transport.scheduleRepeat(playPulse, "4n");

// See documentation here: https://github.com/Tonejs/Tone.js/wiki/Time

​

function playPulse(time){

  kick.start(time);

}

​

// Interface: p5 functions

function setup(){  

  btn = createButton("play");

  btn.mousePressed(togglePlay);

  btn.position(0, 0);

}

​

function togglePlay(){

  if(Tone.Transport.state == "started"){

    Tone.Transport.pause();

    btn.html("play");

  }

  else{

    Tone.Transport.start();

    btn.html("pause");

  }

}

​