Sound When Print is Finished

Want a sound when your print is finished?

Using RepRapDiscount Full Graphic Smart Controller or other with Adruino Mega 2560 r3 and Ramps 1.4 or likewise?

Using CURA or other Slicer with start/end GCode add-on use the following:

M300 - Makes a sound
G4 P30000 - Makes a delay of 30000 ms

Example of modified end code:

M300 - Makes a sound
G4 P30000 - Makes a delay of 30000 ms
M300 - Makes a sound
G4 P30000 - Makes a delay of 30000 ms
M300 - Makes a sound

Result = Three large