John Philip Sousa,
The Experiences of a Bandmaster
“ The influence of music to quiet disorder and to allay fear is quite as potent as its power to excite and to stir enthusiasm. A case in point happened at the St. Louis Exposition, where my band was giving a series of concerts. There was an enormous audience in the music hall when, in the middle of the programme, every electric light suddenly went out, leaving the house in complete darkness. ”
