If anyone cares:
http://www.west-point.org/taps/Taps.html
http://44tennessee.tripod.com/dutchman/taps.html

Well, I found this, but still don't get sanglot:
One of the most famous taps performances was at the funeral of President John F. Kennedy on Nov. 25, 1963. It was extremely cold that day. Sgt. Keith Clark, principal bugler of the U.S. Army Band, "was out there way early," English says. "The muscles just aren't working unless it's warm," English says.

Six notes into taps, Clark "cracked" a note. Clark died in 2002 and is buried at Arlington National Cemetery. He was quoted as saying he "missed a note under pressure." English blames the cold for the broken note.
http://www.usatoday.com/news/washington/2004-06-10-bugler-reagan_x.htm