I'm not really into mash-ups but the song from last post and this one are pretty decent. This one combines George Gershwin's Rhapsody in Blue with Queen's Bohemian Rhapsody. Gershwin's piece has a classical/jazz feeling to it where Bohemian Rhapsody is what? Rock opera? The Queen song works even though its elements are blended into Gershwin's piano jazz style. Or not. What do you think?