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diff --git a/tests/com/jsyn/midi/TestMidiLoop.java b/tests/com/jsyn/midi/TestMidiLoop.java
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+/*
+ * Copyright 2010 Phil Burk, Mobileer Inc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.jsyn.midi;
+
+import java.io.IOException;
+
+import javax.sound.midi.MidiDevice;
+import javax.sound.midi.MidiMessage;
+import javax.sound.midi.MidiUnavailableException;
+import javax.sound.midi.Receiver;
+
+import com.jsyn.JSyn;
+import com.jsyn.Synthesizer;
+import com.jsyn.devices.javasound.MidiDeviceTools;
+import com.jsyn.instruments.DualOscillatorSynthVoice;
+import com.jsyn.midi.MidiSynthesizer;
+import com.jsyn.unitgen.LineOut;
+import com.jsyn.util.MultiChannelSynthesizer;
+import com.jsyn.util.VoiceDescription;
+
+/**
+ * Connect a USB MIDI Keyboard to the internal MIDI Synthesizer using JavaSound.
+ *
+ * @author Phil Burk (C) 2010 Mobileer Inc
+ */
+public class TestMidiLoop {
+
+    public static void main(String[] args) {
+        TestMidiLoop app = new TestMidiLoop();
+        int result = 0;
+        try {
+            for (int i = 0; i < 3 && result == 0; i++) {
+                result = app.test();
+            }
+        } catch (MidiUnavailableException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        System.out.print("Test finished.");
+        System.exit((result == 0) ? 0 : 1);
+    }
+
+    // Write a Receiver to get the messages from a Transmitter.
+    class CustomReceiver implements Receiver {
+        @Override
+        public void close() {
+            System.out.print("Receiver.close() was called.");
+        }
+
+        @Override
+        public void send(MidiMessage message, long timeStamp) {
+            byte[] bytes = message.getMessage();
+            System.out.println("Got " + bytes.length + " bytes.");
+        }
+    }
+
+    public int test() throws MidiUnavailableException, IOException, InterruptedException {
+
+        int result = -1;
+        MidiDevice keyboard = MidiDeviceTools.findKeyboard();
+        Receiver receiver = new CustomReceiver();
+        // Just use default synthesizer.
+        if (keyboard != null) {
+            // If you forget to open them you will hear no sound.
+            keyboard.open();
+            // Put the receiver in the transmitter.
+            // This gives fairly low latency playing.
+            keyboard.getTransmitter().setReceiver(receiver);
+            System.out.println("Play MIDI keyboard: " + keyboard.getDeviceInfo().getDescription());
+            result = 0;
+            Thread.sleep(4000);
+            System.out.println("Close the keyboard. It may not work after this according to the docs!");
+            keyboard.close();
+        } else {
+            System.out.println("Could not find a keyboard.");
+        }
+        return result;
+    }
+
+
+}