To make your life easier, feel free to copy the following template as it has the tone library already included in the index.html and it also has a power button to turn on Tone (some browsers require Tone.start() to be started with a mouse press, this is a security setting to ensure browsers don’t start playing sound automatically when a page is loaded):
mySynth.triggerAttack(”C4”); // starts note
mySynth.triggerRelease(); // ends note
mySynth.triggerAttackRelease(”C4”,1); // starts note and releases it 1 second later
mySynth.oscillator.type=”sine”; // changes oscillator to sine, sawtooth, square
mySynth.volume.value= -40 to 10 // volume is exponential starting negative