Added Tone multiple example

build/shared/examples/Digital/toneMultiple/toneMultiple.pde

@@ -0,0 +1,44 @@
+/*
+  Multiple tone player
+ 
+ Plays multiple tones on multiple pins in sequence
+ 
+ circuit:
+ * 3 8-ohm speaker on digital pins 6, 7, and 11
+ 
+ created 8 March 2010
+ by Tom Igoe 
+ based on a snippet from Greg Borenstein
+
+This example code is in the public domain.
+ 
+ http://arduino.cc/en/Tutorial/Tone4
+ 
+ */
+
+void setup() {
+
+}
+
+void loop() {
+	// turn off tone function for pin 11:
+   noTone(11);			
+   // play a note on pin 6 for 200 ms:
+  tone(6, 440, 200);
+  delay(200);
+
+	// turn off tone function for pin 6:
+  noTone(6);
+   // play a note on pin 7 for 500 ms:
+
+  tone(7, 494, 500);
+  delay(500);
+	// turn off tone function for pin 7:
+  
+  noTone(7);
+     // play a note on pin 11 for 500 ms:
+
+  tone(11, 523, 300);
+  delay(300);
+
+}