They do have a Fine Arts concentration for that degree. https://www.excelsior.edu/programs/liber...lor-degree
You may want to consider TESU's Music degree. Humanities is pretty broad. https://www.tesu.edu/heavin/ba/Music.cfm
However, specific degrees are usually more expensive. Even the Fine Arts would be more expensive than some others. I'm not sure 1 semester would be enough for Music or Fine Arts since you have only 20-30 hours a week.
You may want to consider TESU's Music degree. Humanities is pretty broad. https://www.tesu.edu/heavin/ba/Music.cfm
However, specific degrees are usually more expensive. Even the Fine Arts would be more expensive than some others. I'm not sure 1 semester would be enough for Music or Fine Arts since you have only 20-30 hours a week.