Well, koji, not too sure why you didn't start your own thread, but, yes, the piano may not be the best instrument for Nancarrow, despite his association with player pianos. Maybe an orchestra is required. In any case, there's a string rendition below for comparison free of crowd noise. Strings sustain a note througout the duration of a note moreso than a piano does - that leads to a more melodic sound.
I did this snip just to demonstrate the rhythm. It's pretty close to the sheet music, but, whether you get anything else from this style or not .. that's a matter of personal taste I suppose.
-Jim