 At the time, if you wanted to replicate the music you heard in the theater, the way to do it was to buy the sheet music and play it yourself. And so blackface sheet music becomes one of the first sort of commercial styles of pop sheet music to circulate as sheet music becomes the main source of music property in the 19th century. So you have both the performance of blackface and the sheet music of blackface that begins to sort of shape the aesthetic, right?