Boy Scout Vespers or Scout Vespers is a traditional Scouting song. The tune is that of "O Tannenbaum/O, Christmas Tree". The song is usually sung at the end of the evening campfire, often as people are filing out of the fire circle. Often it will be sung by alternating singing the lyrics and humming the tune. The song is occasionally followed by a spoken benediction such as, "May the great Master of all Scouts be with us till' we meet again".
https://en.scoutwiki.org/Boy_Scout_Vespers
