Serviceberry will fit your bill. They are rugged, not prone to disease and do not get very tall. However, they are not very showy apart from nice blossoms in spring. The best part about mine is a pretty branching pattern from the main trunk.
You might also want to think about a high branching shrub (sometimes serviceberries look like this, rather than a tree--serviceberries as trees are pretty compact--like a lollypop). For instance, a red-twig dogwood, which has pretty variegated leaves, dances nicely in the wind (good sounds). Mine has reached 10 ft.

Great info. Thanks. The shrub idea might actually work very well. Is the dogwood fast growing?