This is certainly one of the better Casper shorts, largely because of its new ideas.
Instead of that standard plot of Casper trying to find a friend, this time he visits a museum, where he meets the ghost of Franz Schubert, still at his piano trying to finish his unfinished symphony.
Schubert can't concentrate, however, because of the noise of the modern world, so the kindly Casper strives to make things a quiet as possible.
The story is good, the gags smooth, and the twist ending is satisfying.
Also good is the animation. Paramount had trouble adapting to the limited animation style that had come into vogue, but nothing here looks too weird or stiff.