Happy Memorial Day... If this doesn't motivate you than you're probably already dead.
We few, we happy few, we band of brothers;
For he to-day that sheds his blood with me
Shall be my brother
"Taps" is a musical piece sounded by the U.S. military nightly to indicate that it is "lights out". The tune is also sometimes known as "Butterfield's Lullaby", or by the lyrics of its second verse, "Day is Done". It is also played during flag ceremonies and funerals, generally on bugle or trumpet.
The tune is actually a variation of an earlier bugle call known as the "Scott Tattoo" which was used in the U.S. from 1835 until 1860, and was arranged in its present form by the Union Army Brigadier General Daniel Butterfield, an American Civil War general who commanded the 3rd Brigade of the 1st Division in the V Army Corps of the Army of the Potomac while at Harrison's Landing, Virginia, in July 1862 to replace a previous French bugle call used to signal "lights out". Butterfield's bugler, Oliver W. Norton, of Erie, Pennsylvania, was the first to sound the new call. Within months, Taps was used by both Union and Confederate forces. It was officially recognized by the United States Army in 1874. 
"Taps" concludes many military funerals conducted with honors at Arlington National Cemetery, as well as hundreds of others around the United States. The tune is also sounded at many memorial services in Arlington's Memorial Amphitheater and at grave sites throughout the cemetery. It became a standard component to military funerals in 1891.
"Taps" is sounded during each of the 2,500 military wreath ceremonies conducted at the Tomb of the Unknown Soldier every year, including the ones held on Memorial Day. The ceremonies are viewed by many people, including veterans, school groups, and foreign officials. "Taps" is also sounded nightly in military installations at non-deployed locations to indicate that it is "lights out". When "Taps" is sounded at a funeral, it is customary for serving members of the military or veterans to salute. The corresponding gesture for civilians is to place the right hand over the heart.