{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/5f0062798fac302dc40ecfa2/5f0062aeb5869a0ace635134?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"Computers Predict Pop Chart Success","description":"An evolutionary analysis of pop tunes revealed that over the past 30 years songs have grown sadder&mdash;but the big hits buck that trend. Christopher Intagliata reports.&nbsp;","author_name":"Scientific American"}