Band at the execution

[NHjohn]

Greetings folks,
I play a bass saxhorn in the Federal City Brass Band out of Baltimore, a Civil War re-enactment band, and authored the book "I Was Detailed to the Regimental Band." During the war, most every execution for desertion and serious crimes such as murder, rape etc., was attended by a regimental band usually playing one of the various "Dead March" pieces, as the condemned was led to his spot. I've never found evidence of any band, regimental or otherwise, entertaining the thousand people waiting at the Old Capitol Prison. Since there were hundreds of military present I find it difficult to believe there was no band present also. Does anybody have any evidence of a band?