[link to original on tumblr]
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I'm not sure that the chords are played as straight chords; I think they're broken into arpeggios or something. Still, there's a chromatic phrase within the chord progression.
D major (D, F#, A)
D major 7th (D, F#, A, C#)
D major dominant 7th (D, F#, A, C)
G major (G, B, D)
G minor (G, Bb, D)
D major (D, F#, A)
Although, since it's in D major, it might technically be A# instead of Bb. So the chromatic phrase is D, C#, C, B, A#, A.
Excepting the numerous instances three-note chromatic phrases, I think this is the third chromatic phrase I've found now. (The other two are in the bass parts of "Indication" and "This Will Be Our Year.")