Cartoon Trivia with Leo & Peri (Memorial Day Edition)

Léonin (b. 1150?) was the first known composer; Pérotin (b. 1200?) was the second known composer.

Having known so much, we present Classicalite's Cartoon Trivia with Leo & Peri. 

Leo: "Peri, I've always wondered. And since it's Memorial Day over in the States, I'm just going to ask this. Who actually wrote the tune to 'Taps?'" 

Do you know the answer, Classicalites? If so, let us know in the comments. As always, we'll post the right response soon.