[davec]

Ask and you shall receive. Hooktheory's Trends tool lets you see and hear all the chord progressions of the individual songs used here. As mentioned in the article, this analysis actually used our free API for accessing our chord progression database (I'm one of the creators of the site).

http://www.hooktheory.com/trends

[claar]

Do you have to be signed in to see this feature? I can't find it. Neat site!

[virusduck]

When you select a progression, click on one of the songs.