multiple_thread_midi_playback.cs

// Starting and Stopping midi playback on multiple threads
using System;
using System.Threading;
using Melanchall.DryWetMidi.Devices;
using Melanchall.DryWetMidi.Smf;
class Program
{
    public static Playback playback;
    static void Main()
    {
        Thread thread = new Thread(SecondaryThread);
        thread.Start();

        var outputDevice = OutputDevice.GetById(0);
        playback = MidiFile.Read("legend.mid").GetPlayback(outputDevice);
        playback.InterruptNotesOnStop = true;

        Console.WriteLine("Starting on main thread.");
        playback.Start();
        Thread.Sleep(5000);
        Console.WriteLine("Starting on main thread.");
        playback.MoveToStart();
        playback.Start();

        Thread.Sleep(5000);
        Console.WriteLine("Changing midi file in main thread.");
        playback = MidiFile.Read("jupiter.mid").GetPlayback(outputDevice);
        playback.InterruptNotesOnStop = true;
        playback.Start();

        Console.ReadLine();
    }
    public static void SecondaryThread()
    {
        Thread.Sleep(3000);
        Console.WriteLine("Stoping on secondary thread.");
        playback.Stop();
        Thread.Sleep(6000);
        Console.WriteLine("Stoping on secondary thread.");
        playback.Stop();
    }
}