Simon the Fiddler by Paulette Jiles
This story is set at the end of the Civil War, about an itinerant fiddle player, a ragtag band of musicians with whom he travels trying to make a living, and the charming young Irish lass who steals his heart.
In March 1865, the long and bitter War between the States is winding down. Till now, twenty-three-year-old Simon Boudlin has evaded military duty but following a barroom brawl in Victoria, Texas, Simon finds himself conscripted into the Confederate Army. Luckily his talent with a fiddle gets him a comparatively easy position in a regimental band.
Weeks later, on the eve of the Confederate surrender, Simon and his bandmates are called to play for officers and their families from both sides of the conflict. There the fiddler can’t help but notice Doris Mary Dillon, an indentured girl from Ireland, who is governess to a Union colonel’s daughter.
After the surrender, Simon and Doris go their separate ways. But Simon cannot forget the fair Irish maiden, and vows that someday he will find her again.-Goodreads