Wagner was no stranger to making the extra dollar -- he also accepted
a commission to write "The Centennial March" to commemorate the U.S.
1876 Centennial Exposition in Philadelphia.  This was a distinct
"non-masterpiece".  I've never seen it on a roll.

Philip Jamison

 [ The Dictionary of Musicians, by Deems Taylor (ed. 1939), says that
 [ opera composer Richard Wagner indeed composed several commemorative
 [ pieces, including one named "Festival March" for the Centennial
 [ Exposition, Philadelphia, 1876.  -- Robbie