The movies often show piano music being played in the saloons, but I really have no idea what other kind of musical entertaintainment was provided.
There's a website that's linked to the Library of Congress with sheet music and audio files. But I haven't figured out how to access it fully. But maybe you can figure it out better than I can.
http://www.loc.gov/teachers/preview/...et-music-1870/
http://memory.loc.gov/ammem/help/view.html
http://memory.loc.gov/ammem/mussmhtml/mussmhome.html
http://memory.loc.gov/ammem/smhtml/s...itlindex1.html
http://memory.loc.gov/ammem/award97/.../hasmhome.html
Maybe some of the helpful folks on the muzzle loading forum can help to answer your question.
It's a re-enactor and traditional muzzle loading website and there are many people who know a lot about U.S. history.
You'll need to register first which you can do for free and one way to accomplish that is to click on my personal referral link and follow the directions:
http://www.muzzleloadingforum.com/fu...referral/4225/