can you tell me something about its design?
It displays a bust of Stephen Foster, facing to the viewer's right, and below it, the words "".
Cincinnati Musical Center half dollar
displays a bust of Stephen Foster, facing to the viewer's right, and below it, the words "". 
what is cincinnati musical center half dollar? A commemorative 50-cent piece when was it produced? In 1936 was there any controversy based on it? Yes, controversy that Melish had travelled to Washington the previous day, and had announced he had no objection to the change.
wiki:20000811
Cincinnati Musical Center half dollar [SEP] Design
The obverse of the Cincinnati Musical Center half dollar displays a bust of Stephen Foster, facing to the viewer's right, and below it, the words "". This phrase was taken from a biography of Foster published earlier in the 1930s. The artist's initials, "CO", are to the left of Foster. The name of the country, and the denomination, appear near the rim. The reverse shows a kneeling figure, intended to be the goddess of music. In the upper left portion of the field, or background, is the date 1886, in the lower right 1936, and beneath the latter the mint mark (unless struck at Philadelphia, which did not then use one).