you can see all of our coverage, our interview with elizabeth of aaron, with the generals -- the men portraying generals grant and lee and all of our coverage coming up. we will re-air at 8:00 p.m. eastern on c-span3. it is available anytime at c-span.org. a reminder that you will find coming up on -- schedule information coming up on our coverage of the 150th anniversary of abraham lincoln's assassination. also see on the website our thursday coverage of the surrender app at a map -- at appomattox. as we leave you from appomattox national park, we are going to share with you some of our conversations with the fife and drum corps. tell us your names. >> i am ranger tim are tell from fort mchenry, baltimore, maryland. >> i am a volunteer at fort mchenry. host: both of you are obviously here as musicians. what would be the role of music in the civil war? >> primarily duty music. they would play calls from sun up to sun down, reveille to tattoo. that is why we made a dollar more a month. as well as marching tunes and patriotic heirs. we were functional from sun up to sun down. reveille i