where can i find info on musicians during the civil war?

Answer 1

Here's a link to a store with tunes and books.

http://www.civilwarmusicstore.com/

Answer 2

I assume you mean those musicians attached to the armies, viz., military bands.

Here are a small handful of web pages that I think will help you.

First, here is a set of articles on the "American Brass Band Movement" -from the 1850s to 70s
It begins with "A Historical Overview"
http://memory.loc.gov/ammem/cwmhtml/cwmpres01.html
It includes this article on the use of these bands DURING the Civil War
http://memory.loc.gov/ammem/cwmhtml/cwmpres07.html
See also the articles on the bands in the 1850s and after the war.

One-page overviews, with some additional interesting material:
http://www.civilwarpoetry.org/music/bands.html
http://americanrevwar.homestead.com/files/civwar/bands.html