Stephen Brophy notes:
>>  [T]he Brattle Theatre here in Cambridge, Mass. is
>>currently running a Monday night series called "Jazz in Noir."  They
>>include "Streetcar Named Desire" in it, not because it is noir, but
>>because, according to them, it is one of the first Hollywood studio
>>films to incorporate jazz into its soundtrack.
 
This entirely overlooks the fact that jazz (of one sort or another)
appeared extradiegetically AND diegetically in Hollywood animated cartoons
(which would of course have accompanied the feature films) all the way back
to the 1930's.  Carl Stalling's immense debt to Raymond Scott, for example,
is currently being acknowledged on several CD's, but that's only the tip of
the iceberg.
 
--Richard