Tony Schwartz: City Pitchmen

From his album, Millions of Musicians (Folkways Records, 1954).  Mr Schwartz wandered around recording audio on the street, like a birdwatcher.  Here's an example of some of the more colorful species.

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Some of these clips begin with a little speed-up noise.  Apparently, Mr Schwartz assembled his collage by recording satellite players into a master deck-- no cutting/splicing.