Band musicians typically supported the medical department once a battle commenced. Some excerpts from the Gettysburg campaign:
-Morning of 1 July, the band [26th North Carolina] withdrew to its assigned position with the hospital unit. (Band member Leinbach) : As our wounded men came in, we helped the surgeons with them until 11 p.m., lay down for a little rest … resumed at 3 a.m. [About 6 a.m.] we were sent for to come to the regiment and play for the men. Brigade surgeon said the musicians could not well be spared as there were so many wounded men needing attention. ... Order came from Col. Marshall for the 26th and 11th bands to report to him and return to the hospital in the evening. Both bands played together for some time … seemed to do the men good, for they cheered us lustily. We got back to the hospital sometime after dark, having come by way of wagons to get as much cooked food as we could for the wounded men. July 3, continued to wait on the wounded. Dan Crouse and I went to the wagons for more rations, these were a couple of miles nearer the field of battle than the hospital. July 4, packed wounded into wagons captured by Stuart on a raid, and went with them." (A Johnny Reb Band from Salem, by Henry H. Hall, p. 47-53)
-We [the drum corps] stayed last night in a school house in company with the 16th Maine brass band … in search of corps hospital … 4 July, [served as a] nurse in the barn which is all the hospital. The hospital wagons with the tents not having arrived yet. 5 July, the hospital tents are set up, worked all day today carrying wounded on stretchers to and from the amputating room. 6 July, worked as nurse among the wounded prisoners with John Pitt. 7 July, F. N. Bell appointed ward master of the prisoners tent and I am detailed as one of the attendants. (Diary of Henry Besancon, 104th New York)
-Morning of 2 July, Col. Cavada told me to take good care of the band … we therefore reported to our surgeons, who were at the foot of the Round Top and the Taneytown road. Established our hospital in an old barn … The doctors selected another hospital site along Rock Creek, to and from our hospital the ambulances heaped with the wounded ran all day. (Frank Rauscher, Music on the March, 114th Pennsylvania)
-In time of action the members of the [regimental] band served in connection with the ambulance corps, carrying off the wounded from the field and assisting the surgeons in operations, their duties compelling them to be under fire frequently, although none were ever wounded or killed. (Under the Red Patch, 63rd Pennsylvania)