// List all available MIDI API's
foreach (var api in MidiDeviceManager.Default.GetAvailableMidiApis())
    Console.WriteLine($"Available API: {api}");

// Listen to all available midi devices
void ControlChangeHandler(IMidiInputDevice sender, in ControlChangeMessage msg)
{   
    Console.WriteLine($"[{sender.Name}] ControlChange: Channel:{msg.Channel} Control:{msg.Control} Value:{msg.Value}");
} 

var devices = new List<IMidiInputDevice>();
try
{
    foreach (var inputDeviceInfo in MidiDeviceManager.Default.InputDevices)
    {
        Console.WriteLine($"Opening {inputDeviceInfo.Name}");

        var inputDevice = inputDeviceInfo.CreateDevice();
        devices.Add(inputDevice);
        
        inputDevice.ControlChange += ControlChangeHandler;
        inputDevice.Open();
    }

    Console.WriteLine("Press any key to stop...");
    Console.ReadKey();
    
}
finally
{
    foreach (var device in devices)
    {
        device.ControlChange -= ControlChangeHandler;
        device.Dispose();
    }
}