Program.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System.Collections.Generic;
using System.Threading;
using Iot.Device.Buzzer;
using Iot.Device.Buzzer.Samples;
using nanoFramework.Hardware.Esp32;

// Alphabet song: https://en.wikipedia.org/wiki/Alphabet_song#/media/File:Alphabet_song.png
ListMelodyElement alphabetSong = new ListMelodyElement()
{
    new NoteElement(Note.C, Octave.Fourth, Duration.Quarter),   // A
    new NoteElement(Note.C, Octave.Fourth, Duration.Quarter),   // B
    new NoteElement(Note.G, Octave.Fourth, Duration.Quarter),   // C
    new NoteElement(Note.G, Octave.Fourth, Duration.Quarter),   // D
    new NoteElement(Note.A, Octave.Fourth, Duration.Quarter),   // E
    new NoteElement(Note.A, Octave.Fourth, Duration.Quarter),   // F
    new NoteElement(Note.G, Octave.Fourth, Duration.Half),      // G
    new NoteElement(Note.F, Octave.Fourth, Duration.Quarter),   // H
    new NoteElement(Note.F, Octave.Fourth, Duration.Quarter),   // I
    new NoteElement(Note.E, Octave.Fourth, Duration.Quarter),   // J
    new NoteElement(Note.E, Octave.Fourth, Duration.Quarter),   // K
    new NoteElement(Note.D, Octave.Fourth, Duration.Eighth),    // L
    new NoteElement(Note.D, Octave.Fourth, Duration.Eighth),    // M
    new NoteElement(Note.D, Octave.Fourth, Duration.Eighth),    // N
    new NoteElement(Note.D, Octave.Fourth, Duration.Eighth),    // O
    new NoteElement(Note.C, Octave.Fourth, Duration.Half),      // P
    new NoteElement(Note.G, Octave.Fourth, Duration.Quarter),   // Q
    new NoteElement(Note.G, Octave.Fourth, Duration.Quarter),   // R
    new NoteElement(Note.F, Octave.Fourth, Duration.Half),      // S
    new NoteElement(Note.E, Octave.Fourth, Duration.Quarter),   // T
    new NoteElement(Note.E, Octave.Fourth, Duration.Quarter),   // U
    new NoteElement(Note.D, Octave.Fourth, Duration.Half),      // V
    new NoteElement(Note.G, Octave.Fourth, Duration.Eighth),    // Dou-
    new NoteElement(Note.G, Octave.Fourth, Duration.Eighth),    // ble
    new NoteElement(Note.G, Octave.Fourth, Duration.Quarter),   // U
    new NoteElement(Note.F, Octave.Fourth, Duration.Half),      // X
    new NoteElement(Note.E, Octave.Fourth, Duration.Quarter),   // Y
    new NoteElement(Note.E, Octave.Fourth, Duration.Quarter),   // and
    new NoteElement(Note.D, Octave.Fourth, Duration.Half),      // Z
};

Configuration.SetPinFunction(25, DeviceFunction.PWM1);

using var player1 = new MelodyPlayer(new Buzzer(25));

player1.Play(alphabetSong, 100, -12);

player1.Play(alphabetSong, 100);

Thread.Sleep(Timeout.Infinite);